单词：object lens
object lens的用法和样例：
例句
- 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。
- object glass[物]物镜
- objective lens物镜
- objective客观的
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