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SW運(yùn)動(dòng)算例,,接觸中設(shè)置了摩擦,,為什么能量不衰減,? |
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點(diǎn)評(píng)
動(dòng)圖已經(jīng)證明一切了,我還沒閑到會(huì)花費(fèi)多余的時(shí)間做這種無聊的事,,本身程序就能夠做到,,你信與不信又能怎么樣。
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