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yazhuge:前面加鏡片,類似施密特校正板那樣的~ (2011-11-23 20:45) me+u"G9I;
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jianqiang:視場角加大,只能用折反結構,純反射結構視場角很小 (2011-12-08 23:05) #4{9l SbU
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