4610| 11
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因?yàn)橥娴V,常想到米國的礦,哈哈 |
評(píng)分
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點(diǎn)評(píng)
個(gè)人理解只是一個(gè)簡化計(jì)算的換算方法,就像指數(shù)運(yùn)算變成對(duì)數(shù)運(yùn)算一樣。在控制上的運(yùn)用,也只是對(duì)應(yīng)描述運(yùn)動(dòng)狀態(tài)而已。
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