A.turned
B.oil level checked
C.filled with water
D.A and B
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A.engine cylinder
B.air bottle
C.evaporator
D.condenser
A.expansion tank
B.combustion chamber
C.air receiver
D.evaporator
A.air cylinder
B.combustion chamber
C.steam drum
D.expansion tank
A.single
B.Ⅱ
C.Ⅲ
D.multiple
A.inlet pipe
B.outlet pipe
C.inter cooler
D.after cooler
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（） is not installed on the main switchboar.
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