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单项选择题
A.gravity
B.diameter
C.circumference
D.cylinder
单项选择题
A.displacement
B.weight
C.power
D.capacity
单项选择题
A.should be paved
B.should be cleaned
C.should be dismantled
D.should be welded
单项选择题
A.fulfill
B.eliminate
C.grease
D.bend
单项选择题
A.Condenser and thermal expansion valve
B.King and solenoid valves
C.Compressor and thermal expansion valve
D.Condenser and solenoid valve
单项选择题
A.Too much refrigerant
B.Too little refrigerant
C.Refrigerant is ran out
D.Running is over
单项选择题
A.increase
B.reduce
C.maintain constant
D.None of the above is true
单项选择题
A.(1)only
B.anyof(1),(2)and(3)
C.anyof(1)and(3)
D.anyof(1)and(2)
单项选择题
A.any of (1) and (3)
B.any of (1) and (2)
C.any of (2) and (3)
D.any of (1), (2) and (3)
单项选择题
A.cutout
B.controller switch
C.pressure controller
D.cutout switch