单项选择题
In order to avoid shock, reduce the speed by （）(低速控制器)when the cover comes near the stoppers.
A. control lever
B. control panel
C. control loop
D. inching control
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相关考题
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单项选择题
When the weather becomes bad, the hatch covers will be （）(关闭).
A. closed
B. opened
C. handled
D. opened and closed -
单项选择题
Don’t operate two or more （）(舱盖)at the same time.
A.caps
B.levers
C.hatch covers
D.hatches -
单项选择题
lead block（）
A.滑车
B.导向滑车
C.千斤索
D.底脚滑车
