A.360°
B.270°
C.180°
D.90°
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A.less
B.more
C.many
D.much
A.a warp end
B.a mooring winch
C.a worm gear
D.a barrel
A.cable lifters
B.spur wheels
C.bollard
D.warpends
A.a variable displacement axial piston pump
B.a constant displacement axial piston pump
C.a reciprocating piston pump
D.a centrifugal pump
A.Constant pressure system
B.Variable pressure system
C.Variable displacement system
D.Constant volume system
最新試題
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
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To proceed to the assistance of a ship in distress is（）