17. The ___________ throttles the liquid refrigerant and maintains the pressure difference
between the condenser and evaporator.
(A) constant folw control valve
(B) constant pressure control valve
(C) pressure regulating valve
(D) expansion valve
答案:登入後查看
統計: A(56), B(156), C(178), D(609), E(0) #1854588
統計: A(56), B(156), C(178), D(609), E(0) #1854588