寻星镜
xún xīng jìng
- finderscope;viewfinder
寻星镜
寻星镜[xún xīng jìng]
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寻星镜一种低功率大视野的望远镜，附加在一台较大的望远镜上，为开始标出被观察的物体位置而指向同一方向。
A low-power , wide-angle telescope fixed to the body of a more powerful telescope and pointed in the same direction for initially locatingan object to be observed .
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例句与用法：寻星镜一种低功率大视野的望远镜，附加在一台较大的望远镜上，为开始标出被观察的物体位置而指向同一方向最初契约的有效期为。。。
A low-power , wide-angle telescope fixed to the body of a more powerful telescope and pointed in the same direction for initially locating an object to be observed . Initially the contract will be in effect for ...