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求圓管與其展開圖上的對(duì)應(yīng)結(jié)構(gòu)的精確畫法,? |
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點(diǎn)評(píng)
軟件對(duì)圓弧都是用直線段一段段模擬出來(lái)的,你說(shuō)的不用計(jì)算可能嗎,?
如果真有這種方法,,那π值早就可以準(zhǔn)確的算出來(lái)了
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