shortest sighting distance
shortest queue plus bias最短排队和差 shortest sighting distance最短视距 shortest sighting distance最短视距〖 调焦望远镜所能观察(在分划板分划面上清晰成像)到的最近物体与仪器转〗 ..
shortest distance
... 视场角 field of view 最短视距 shortest distance 测量方式 measuring mode ...
Minmum focus
... 视场角 Field of view 最短视距 Minmum focus 乘常数 MutipLication constant ...