A.Stray current
B.Rated current
C.Starting current
D.Earth current
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A.pump
B.the cylinder
C.the hunting gear
D.the rudder
A.transmitter
B.receiver
C.pipes
D.charging unit
A.transmitter
B.receiver
C.pipes
D.charging unit
A.hunting gear
B.cut-off level
C.servo-motor
D.swivel block
A.control equipment
B.power unit
C.transmission mechanisms
D.fittings and pipeline
最新試題
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（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
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Under MARPOL Code the ship to which it applies has to carry （）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）