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单项选择题
A.a hoisting motor
B.a luffing motor
C.a mooring motor
D.a slewing motor
单项选择题
A.the drive pump
B.the drive motor
C.the warp end
D.the purchase
单项选择题
A.windlass
B.anchor capstan
C.turning gear
D.winch barrel
单项选择题
A.A capstan
B.A hold
C.A warp end
D.A mooring drum
单项选择题
A.The compressed air
B.The compressing air
C.The transfer pump
D.The head tank
单项选择题
A.reciprocating
B.diffuser
C.turbine
D.vane
单项选择题
A.lower than
B.higher than
C.below
D.equal to
单项选择题
A.fire-tubes
B.furnaces
C.down-comers
D.soot-blowers
单项选择题
A.The domestic water
B.Bilge water
C.Oil transfer
D.The ballast
单项选择题
A.A cut-off lever
B.A swivel block
C.A cross-head
D.A driving gear