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qsj98:三种方法仅供参考: (gPB@hAv 1. 考查系统出射光线平行性; XR9kxTuk 2. 加理想透镜,其焦距等于系统焦距; !/tV}.* 3. 光路反向计算,即系统倒置,从无穷计算到焦平面。....... (2013-07-31 22:50) W1<*9O
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