单项选择题
A.to decrease scale formation B.for better cooling effect C.for more economical purpose D.to raise vacuum
In a vacuum boiling evaporator, the fresh water generat...
单项选择题In a vacuum boiling evaporator, the fresh water generated is pumped out by （）.
A.a brine pump B.an air ejector C.a feed water pump D.a condensate pump
With a vacuum boiling evaporator, the remainder of sea ...
单项选择题With a vacuum boiling evaporator, the remainder of sea water fed to the evaporator is pumped out by （）.
A.a brine pump B.an air ejector C.a feed pump D.distillate pump
When a vacuum boiling evaporator works, the hot jacket ...
单项选择题When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and （） the sea water passing through the tubes.
A.dispose B.dissolve C.heat D.dissipates
