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lanlanzhu:[表情] 好厉害 (2014-01-05 21:25) .E/NlGm[
phoenixzqy:把上学时候学的光学知识、数学知识结合到一块,就能计算出来了。常交流! (2014-01-05 22:17) oEuo@\U05v
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lanlanzhu:数学不好是硬伤啊···[表情] (2014-01-06 09:05) sO!YM5v8
y粟花:感谢楼主分享! (2014-01-06 15:08) gFvFd:"uZ
doddshi:好文章,不错 (2014-01-06 22:28) Ih`n:aA
lanlanzhu:数学不好是硬伤啊···[表情] (2014-01-06 09:05) O:lD>A4{