... periphery grinding machine for indexable carbide insert 可转位刀片周边磨床 periscope binoculars 潜望镜式双筒望远镜 periscope 熔炉观测镜 ...
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... 双目望远镜，双筒望远镜 binocular telescope 潜望镜式双筒望远镜 periscope binoculars 夜行车用红外双筒望远镜 diriving infrared binoculars ...
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