collector lens focusing knob的意思|示意

释义聚光透镜调焦旋钮 ... fine-focusing knob 精调焦旋钮 coarse-focusing knob 粗调焦旋钮 collector lens focusing knob 释义聚光透镜调焦旋钮 ...

聚光透镜调焦旋钮 ... 反射镜调焦旋钮 reflector focusing knob 聚光透镜调焦旋钮 collector lens focusing knob 再聚焦旋转光束 refocused revolving beam ...