Monocular
... 双筒望远镜 Binocular 观景望远镜 Monocular 单筒望远镜 Monocular ...
Spotting scopes
... lexical scopes 词法作用域 Spotting scopes 观景望远镜 Sound Scopes 设备检修用听音器 ...
viewing series binoculars
portable astronomical landscape telescope