AOur ship is equipped with automatic hatch covers.
BOur ship is equipped with folding-type hatch covers.
COur ship is equipped with side-rolling hatch covers.
DOur ship is equipped with rolling-type hatch covers.
The()(自动舱盖) is operated by electric or hydraulic power.
单选题查看答案
“我船正在向左转向”的笛号表示方法为()。
每一个舱盖由两个或更多的盖板组成。()
高速和野蛮操作舱盖均是危险的。()
船舶的舱盖有多种类型。()
Are you testing the()(液压舱盖)?
装卸货之前,打开舱盖。()
我船在夜间发现一盏白色定光灯,他可能是()。
水手长,我们为什么要开舱盖?()
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