单项选择题

A.absorb the shock of wave pressure at the bowB.be plac……

A thrust block is designed to（）.

A.absorb the shock of wave pressure at the bow
B.be placed between the engines and the foundation to absorb the vibration
C.transmit the thrust of the engine to the propeller
D.transmit the thrust of the propeller to the vessel

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单项选择题A simplified construction plan may be included in the ship construction portfolio provided it adequately defines the（）.

A.areas where special materials are used
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C.location of emergency repair equipment
D.type and strength of materials used

单项选择题A Kort nozzle is a(n)（）.

A.hollow tube surrounding the propeller used to improve thrust
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C.intake valve on a diesel engine
D.piston cylinder on a diesel engine

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A.store fluid under pressure
B.act as a fluid reservoir
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A.rich to burn
B.lean to burn
C.cool to burn
D.dense to burn