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quanliwei:看来得多学习学习了 (2014-07-09 23:25) d4y9AE@k
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healking:想學習透鏡的設計,有哪位高手可以指點,先跪謝。 (2014-07-14 11:00) F%xK"l`&
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chcaqw:看来,需要学习光学了 (2014-07-17 07:42) `1Zhq+s
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