单项选择题
A.provide an area where air can separate from the oil
B.provide an area to separate solid contaminants from the oil
C.act as an oil and water separator
D.absorb shocks occurring in the system
单项选择题 A reservoir, as used in hydraulic systems aboard ship, is used to store hydraulic oilAnother function is to（）
单项选择题 To prevent the unnecessary loading of an air conditioning system while maintaining the designed dry bulb temperature and relative humidity in an air conditioning system, you should （）
单项选择题 When air is at its dew point it is at its（）