A vacuum is initially created in a flash type distilling plant by().
In a vacuum boiling evaporator, the fresh water generated is pumped out by ().
The vacuum maintained in the salt water feed heater shell of a flash-type evaporator is generally accomplished by ().
The crankcase of many diesel engines are kept under a slight vacuum by the ().
英译中:Vacuum packaging
Because of the reduced () in the vacuum boiling evaporator, some of the sea water boils as it flows through the tubes.
When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and () the sea water passing through the tubes.
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 vacuum is initially established in the first and second stages of a low pressure evaporator by the use of ()
In a vacuum distillation system, the case is the higher the pressure, ().