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lanlanzhu:[表情] 好厲害 (2014-01-05 21:25) 8HaBil
phoenixzqy:把上學(xué)時候?qū)W的光學(xué)知識、數(shù)學(xué)知識結(jié)合到一塊,就能計算出來了。常交流! (2014-01-05 22:17) RuBL_Vi
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lanlanzhu:數(shù)學(xué)不好是硬傷啊···[表情] (2014-01-06 09:05)