A.blow
B.clean
C.scavenge
D.purge
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A.main stern stop valve
B.auxiliary steam stop valve
C.scum valve
D.blow down valve
A.main stem stop valve
B.auxiliary steam stop valve
C.feed check or control valve
D.blow down valve
A.main stem stop valve
B.auxiliary steam stop valve
C.feed check or control valve
D.blow down valve
A.main stem stop valve
B.auxiliary steam stop valve
C.feed check or control valve
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A.main steam stop valve
B.auxiliary steam stop valve
C.feed check or control valve
D.blow down valve
最新試題
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To proceed to the assistance of a ship in distress is()
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