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...
Docks are generally made up of wharves aprons of docks jetties piers quays terminals , warehouses and offices.码头主要由码头前沿 、 仓库和办公室组成.When they first captured the port, they virtually cleaned out its warehouses.他们刚占领港...
松树上的松鼠通常咬掉和弄落整个球果.In the pines squirrels commonly chew off and drop entire cones.松树和云杉球果有时会遭到松鼠为害引起轻度或中等程度的损害.Light to moderate losses of pine and spruce cones are occasionally caused by squirrels.几位作者都注意到,花和球果的产生会削弱木材的生...