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輪機(jī)英語單項(xiàng)選擇題每日一練(2019.09.20)
來源:考試資料網(wǎng)
1
External and internal leakage in hydraulic systems may be caused by ().
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2
The ISM Code is a part of ()
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3
Which of the following statements describes the relationship between viscosity and specific gravity?()
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4
Usually the panels are interlocked with () so that the devices can be made dead before the doors are opened.
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5
In a simple mechanical governor, the ().
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