UID:275597
UID:261059
transfercai:你怎么算的物距呢?到一面切线的距离?焦距是焦点到主面的距离,主面的位置可不一定哦 (2012-09-30 20:12) @u/CNx,`X
UID:194704
UID:275654
UID:142089