单项选择题
Small droplets of water entrained in the flashed vapor produced in a flash-type evaporator, are removed by the （）
A.spray pipes B.demisters C.condensers D.splash baffles
单项选择题 The demisters installed in a flash-type evaporator serve to （）
单项选择题 A vacuum is initially established in the first and second stages of a low pressure evaporator by the use of （）
单项选择题 The heated feed-water entering any flash chamber of a flash-type evaporator will（）
