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</gourl2><NodeID>24</NodeID><Title>静止液体对容器底的压力不一定等于液体所受的重力</Title><SoftSize>0.00</SoftSize><SoftSizeUnit>B</SoftSizeUnit><SoftSize>0.00</SoftSize><SoftSizeUnit>B</SoftSizeUnit><typeicon>other</typeicon><editor>czwlzx</editor><author>vip</author><user>czwlzx</user><userface>/UploadFiles/UserPic/UserAvatars/15219_150_150.jpg</userface><Hits>
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   </Stars><Author>vip</Author><infopoint>0</infopoint><Keyword>液体,压力</Keyword><CopyFrom>本站原创</CopyFrom><SoftType></SoftType><CopyrightType></CopyrightType><DecompressPassword></DecompressPassword><OperatingSystem></OperatingSystem><UpdateTime>2004年12月08日</UpdateTime><RegUrl></RegUrl><DemoUrl /><DefaultPicUrl>/UploadFiles/nopic.gif
     </DefaultPicUrl><Intro>有A、B、C三个容量不同的容器，它们的底面积S和高度h相等，如图6－1所示。其中B的容量大于A，而C的容量小于</Intro><SoftIntro2>有A、B、C三个容量不同的容器，它们的底面积S和高度h相等，如图6－1所示。其中B的容量大于A，而C的容量小于A。如果三个容器装满同种液体，在不考虑大气压强的情况下，因液体的高度相同，容器底部所受的压强相等，容器的底面积S又相同，所以底面所受的压力也相同，即FA＝FB＝FC。但三个容器中液体的质量不同。液体所受的重力并不相同，GB＞GA＞GC。对于容器A来说，容器底所受的压力就等于液体所受的重力，FA＝GA，这一点容易理解。而在容器B中，FB＜GB；在容器C中，FC＞GC。如何理解容器B、C中的现象呢？

　　设想在容器B、C中，从容器底至液面取一液柱，如图6－1所示。因液柱高度与A中液体相同，所以液柱在容器B、C底面所产生的压强也与A底部</SoftIntro2><SoftIntro>
    【内容简介】有A、B、C三个容量不同的容器，它们的底面积S和高度h相等，如图6－1所示。其中B的容量大于A，而C的容量小于A。如果三个容器装满同种液体，在不考虑大气压强的情况下，因液体的高度相同，容器底部所受的压强相等，容器的底面积S又相同，所以底面所受的压力也相同，即FA＝FB＝FC。但三个容器中液体的质量不同。液体所受的重力并不相同，GB＞GA＞GC。对于容器A来说，容器底所受的压力就等于液体所受的重力，FA＝GA，这一点容易理解。而在容器B中，FB＜GB；在容器C中，FC＞GC。如何理解容器B、C中的现象呢？

　　设想在容器B、C中，从容器底至液面取一液柱，如图6－1所示。因液柱高度与A中液体相同，所以液柱在容器B、C底面所产生的压强也与A底部的压强相同。这个压强大小不变地传递到容器B、C底面的各点，所以底部各点的压强都是同一值，即都跟容器A底部的压强相同。它们的底面积又相等．由F<SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New</SoftIntro><SoftIntroEncode>有A、B、C三个容量不同的容器，它们的底面积S和高度h相等，如图6－1所示。其中B的容量大于A，而C的容量小于A。如果三个容器装满同种液体，在不考虑大气压强的情</SoftIntroEncode><special /><DownloadUrl></DownloadUrl><Content>有&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;三个容量不同的容器，它们的底面积&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;S&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;和高度&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;h&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;相等，如图&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;6&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;－&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;1&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;所示。其中&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;的容量大于&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;，而&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;的容量小于&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;。如果三个容器装满同种液体，在不考虑大气压强的情况下，因液体的高度相同，容器底部所受的压强相等，容器的底面积&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;S&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;又相同，所以底面所受的压力也相同，即&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;A&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＝&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;B&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＝&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;C&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;。但三个容器中液体的质量不同。液体所受的重力并不相同，&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;B&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＞&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;A&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＞&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;C&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;。对于容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;来说，容器底所受的压力就等于液体所受的重力，&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;A&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＝&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;A&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;，这一点容易理解。而在容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;中，&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;B&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＜&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;B&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;；在容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;中，&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;C&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＞&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;C&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;。如何理解容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;中的现象呢？&lt;/SPAN&gt;
&lt;P class=MsoNormal align=center&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;&lt;IMG alt="" hspace=0 src="PE.SiteConfig.ApplicationPathPE.SiteConfig.uploaddir/ckzlzx_UploadFiles_2200/2004128101441734.jpg" align=baseline border=0&gt;&lt;/SPAN&gt;&lt;/P&gt;
&lt;P class=MsoNormal&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;　　设想在容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;中，从容器底至液面取一液柱，如图&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;6&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;－&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;1&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;所示。因液柱高度与&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;中液体相同，所以液柱在容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;底面所产生的压强也与&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;底部的压强相同。这个压强大小不变地传递到容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;底面的各点，所以底部各点的压强都是同一值，即都跟容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;底部的压强相同。它们的底面积又相等．由&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New</Content><banben></banben><area></area><type></type><type2>不限</type2><ico></ico><video>有&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;三个容量不同的容器，它们的底面积&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;S&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;和高度&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;h&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;相等，如图&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;6&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;－&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;1&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;所示。其中&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;的容量大于&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;，而&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;的容量小于&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;。如果三个容器装满同种液体，在不考虑大气压强的情况下，因液体的高度相同，容器底部所受的压强相等，容器的底面积&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;S&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;又相同，所以底面所受的压力也相同，即&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;A&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＝&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;B&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＝&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;C&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;。但三个容器中液体的质量不同。液体所受的重力并不相同，&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;B&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＞&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;A&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＞&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;C&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;。对于容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;来说，容器底所受的压力就等于液体所受的重力，&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;A&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＝&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;A&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;，这一点容易理解。而在容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;中，&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;B&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＜&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;B&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;；在容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;中，&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;C&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;＞&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;G&lt;/SPAN&gt;&lt;SUB&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;C&lt;/SPAN&gt;&lt;/SUB&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;。如何理解容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;中的现象呢？&lt;/SPAN&gt;
&lt;P class=MsoNormal align=center&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;&lt;IMG alt="" hspace=0 src="PE.SiteConfig.ApplicationPathPE.SiteConfig.uploaddir/ckzlzx_UploadFiles_2200/2004128101441734.jpg" align=baseline border=0&gt;&lt;/SPAN&gt;&lt;/P&gt;
&lt;P class=MsoNormal&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;　　设想在容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;中，从容器底至液面取一液柱，如图&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;6&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;－&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;1&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;所示。因液柱高度与&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;中液体相同，所以液柱在容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;底面所产生的压强也与&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;底部的压强相同。这个压强大小不变地传递到容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;B&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;、&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;C&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;底面的各点，所以底部各点的压强都是同一值，即都跟容器&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;A&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"&gt;底部的压强相同。它们的底面积又相等．由&lt;/SPAN&gt;&lt;SPAN lang=EN-US&gt;F&lt;/SPAN&gt;&lt;SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New</video><DefaultPicUrl>
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            <ul>
                <li><label>用户名：</label><input name="username" type="text" /></li>
                <li><label>密　码：</label><input name="userpass" type="password" /></li>
                <li id="validateField"><label>验证码：</label><input name="validate" id="validateCode" type="text" /><span><img src="/Controls/ValidateCodeImage.aspx" class="validateSign" id="validateSign" title="换一个" align="absmiddle" /></span></li>
                <li class="check"><label><input name="saveinfo" type="checkbox" /><span>保持登录状态</span></label></li>
                <li class="login">
                    <img id="login" src="/Template/Default/Skin/MMskin/images/login.gif" alt="登录" align="absmiddle" /></li>
            </ul>
        </div>
        <div class="reg_info">
            <ul>
                <li>没有帐号？<a href="/User/Register.aspx" target="_blank" title="点此注册">点此注册</a></li>
                <li><a href="/User/GetPassword.aspx" target="_blank" title="忘记密码？">忘记密码？</a></li>
            </ul>
        </div>
        <div class="clear">
        </div>
    </div>
</div>

<!--弹出登录结束--> 
<!-- 这个是背景黑色半透明遮罩，不能包含弹窗，否则会出现弹窗透明现象 -->
<div id="bjtidu_ground" onclick="closeModel()"> </div>
<!-- 这个是用来展示弹框内容的 -->
<div id="login_model"><iframe name='LogOnFrame' id='LogOnFrame' src='' width='300' height='400' fullscreen=true download=false print=false openfile=false frameborder='no' border='0'></iframe></div>
<script>
    /* 打开弹出框的功能 */
   function openModel() {
        document.getElementById("bjtidu_ground").style.display = 'block';
        document.getElementById("login_model").style.display = 'block';
       // 禁止浏览器滚动
        document.body.style.overflow = 'hidden';
    }
    /**
    * 关闭弹出框的功能*/
    function closeModel() {
        document.getElementById("bjtidu_ground").style.display = 'none';
        document.getElementById("login_model").style.display = 'none';
        // 不遮挡后面的内容将body设置为原始样式，也就是实现可滚动
        document.body.style.overflow = 'auto';
    }

  $("#wxlog").click(function(){
    $("#LogOnFrame").attr("src","/qrconn.aspx");
  })

$(function(){
    var ua = navigator.userAgent.toLowerCase(); 
    if(ua.match(/iPad/i)=="ipad" || ua.match(/Mobile/i)=="mobile") { 
     $("#wxlog").hide();
    }
    else{
    }
})
</script>
<script type="text/javascript" src="/Template/Default/Skin/MMskin/js/tools.js"></script>
<script>
(function(){
    var bp = document.createElement('script');
    var curProtocol = window.location.protocol.split(':')[0];
    if (curProtocol === 'https') {
        bp.src = 'https://zz.bdstatic.com/linksubmit/push.js';
    }
    else {
        bp.src = 'http://push.zhanzhang.baidu.com/push.js';
    }
    var s = document.getElementsByTagName("script")[0];
    s.parentNode.insertBefore(bp, s);
})();
</script>


{PE.Label id="A评论标签" nodeId="{PE.Field id="cone" fieldname="NodeID" /}" /}
</body>
</html>