|
<!--QuoteBegin-分飞+21.03.2007, 23:56 --><div class='quotetop'>QUOTE(分飞 @ 21.03.2007, 23:56 )</div><div class='quotemain'><!--QuoteEBegin-->物理的话题,关于铅球动力学说.....<br />[right][snapback]1281498[/snapback][/right]<br /><!--QuoteEnd--></div><!--QuoteEEnd--><br /> <!--emo&:closedeyes:--><img src='style_emoticons/<#EMO_DIR#>/closedeyes.gif' border='0' style='vertical-align:middle' alt='closedeyes.gif' /><!--endemo--> <!--emo&:closedeyes:--><img src='style_emoticons/<#EMO_DIR#>/closedeyes.gif' border='0' style='vertical-align:middle' alt='closedeyes.gif' /><!--endemo--> 动量定理,弹性碰撞以后各自速度 |
|