The captain of the submarine has got this periscope thing.那个潜艇艇长有个类似于潜望镜之类的东西.The captain aligned the periscope on the bearing.船长使潜望镜对准方位。Now, peering through the periscope he remarked in businesslike tones.现在, 他一面从潜望镜里观...
The captain of the submarine has got this periscope thing.那个潜艇艇长有个类似于潜望镜之类的东西。a furnace scanning periscope熔炉观测镜The plant is operated entirely by remote control and monitored by closed circuit television or periscope.这个工厂...