正确答案: A

油压力

题目：船舶液压起货机的制动器通常靠()松闸。

解析：A

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学习资料的答案和解析：

[单选题]If the flame from combustion in the cylinder of a four-stroke engine past the piston into the space below, the accumulation of flammable mixture would be ignited, thus resulting in _____.

the crankcase explosion

[单选题]The unit of electrical power is the _____.

watt