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<HTML><HEAD><TITLE>new</TITLE><META content="text/html; charset=gb2312" http-equiv=Content-Type><LINK href="text.css" rel=stylesheet type=text/css><META content="Microsoft FrontPage 4.0" name=GENERATOR></HEAD><body leftmargin="15"><center><b><br>1 质点系的质心</b></center> <table border="0" cellpadding="0" cellspacing="0" width="560"> <tr> <td> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td width="50%">任一质点系的质心：</td> <td width="50%" rowspan="5"> <p align="center"><img border="0" src="pic/3041.h15.gif" width="211" height="184"></td> </tr> <tr> <td width="50%"><img border="0" src="pic/3041.h16.gif" width="82" height="47"></td> </tr> <tr> <td width="50%"><img border="0" src="pic/3041.h17.gif" width="287" height="47"></td> </tr> <tr> <td width="50%"></td> </tr> <tr> <td width="50%"> <table border="0" cellpadding="0" cellspacing="0"> <tr> <td bgcolor="#FFFFCC">问题：质心、重心、形心有何区别？</td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td> <p align="center"> <a href="3040.htm"><font color="#FF6666">[ 上一节 ]</font></a> <a href="3042.htm"><font color="#00CC00">[ 下一节 ]</font></a> </td> </tr></table></BODY></HTML> ⌨️ 快捷键说明
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