isodensity centrifugation;isopycnic centrifugation（等密度离心）
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1、A centrifuge will satisfactorily remov
A centrifuge will satisfactorily remove which of the following contaminants from fuel oil?（）AGasolineBWaterCLubricating oilDsulphur compound
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2、A double suction centrifugal pump impe
A double suction centrifugal pump impeller has been installed in the reverse direction, and will （）.Ahave a greater head capacityBoperate with...
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3、A centrifugal pump produces flow with
A centrifugal pump produces flow with a resulting discharge head by energy conversionIt is typical for the energy conversion to follow the orde...
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4、For optimum results, centrifugal purif
For optimum results, centrifugal purification of heavy fuel oil should be accomplished with the fuel at the lowest practicable（）AthroughputBadditive percentCcetane numberDTBN number
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5、On board supply vessels, a centrifuge
On board supply vessels, a centrifuge is normally used to purify（）Acooling waterBfuel oilCsea waterDdiesel intake air
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6、In a centrifugal Freon refrigeration s
In a centrifugal Freon refrigeration system, the overall capacity of the system is increased by（）Aopening more bypass linesBopening additional expansion valvesCadding refrigerantDspeeding up the machine