单选题Which of the following descriptions best identifies the operating principal of a flash-type evaporator?（）ASea water is heated to boiling temperature while under a vacuumBSea water is passed over heated plates in a thin filmCHeated sea water is injected into a vacuum chamberDSea water is forced through a heated eductor
单选题
Which of the following descriptions best identifies the operating principal of a flash-type evaporator?（）
A
Sea water is heated to boiling temperature while under a vacuum
B
Sea water is passed over heated plates in a thin film
C
Heated sea water is injected into a vacuum chamber
D
Sea water is forced through a heated eductor
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