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單項(xiàng)選擇題

The （） returns the pump operating rod to mid position as soon as the helmsman stops turning the wheel.

A.hunting gear
B.cut-off level
C.servo-motor
D.swivel block

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單項(xiàng)選擇題

The （） in the steering gear system provides the force.

A.control equipment
B.power unit
C.transmission mechanisms
D.fittings and pipeline

單項(xiàng)選擇題

The cable lifter, mooring drum and warp end of a split windlass may be separately engaged or disengaged means of a （）

A.dog clutch
B.Pair of gears
C.worm gear
D.turning gear

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