A.Water is heated into vapor on heating surfaces
B.Water is vaporized by pressure difference
C.There are no heating-transfer surfaces
D.There are more heating-transfer surfaces
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A.high-pressure steam-driven air-ejector
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D.centrifuge pump
A.condenser
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A.the oil feeding is stopped and replaced by admitting flushing water
B.the flushing water feeding is stopped and replaced by admitting oil
C.the feeding of dirty oil and flushing water is stopped
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A.by opening the separator manually
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C.by separating the upper part from the lower part automatically
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