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When a flash-type evaporator is to be secured for ...

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When a flash-type evaporator is to be secured for an extended period of time, the entire unit should be drained, cleaned, and （）.

发布日期：2021-03-22

A.completely filled with saltwater

B.filled with de-scaling compound

C.tightly closed to exclude air

D.vented to the atmosphere

标签： flash-type evaporator secured extended period

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