A.overhauling every two year
B.working at intervals
C.renewing filtration material
D.pumping bilge water from different layers respectively
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A.working at intervals and properly heating
B.warming up to 70℃, increase water supply flow
C.improving impulse of water supply
D.reducing water supply flow
A.flushing separator with hot water
B.increasing water supply flow
C.heat oily water properly
D.opening manual oil discharge value
A.the separator is overload
B.the monitor equipment of separator fails
C.the discharge pump of separator can not work
D.the temperature of oil water is low
A.15；inlet value
B.15；inlet and outlet value
C.30；inlet value
D.30；inlet and outlet value
A.filled with bilge water
B.filled with oil
C.filled with clean water
D.be emptied
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