Noun:
-
the lens or system of lenses in a telescope or microscope that is nearest the object being viewed
用作名词 (n.)
- The object glass of a telescope must be accurately centred.
望远镜的物镜必须精确置于中心上。
- Objectives which consist only of one lens can be used for visual and photographic observations.
由单透镜组成的物镜可作目视和照相观测用。