A.the running-in period
B.the running process
C.gas exchange process
D.the boiler firing
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A.bending joint
B.expansion tank
C.weld
D.the highest point
A.Finished with Engine
B.Stop the Engine
C.Stand-by Engine
D.Slow-down Engine
A.take in
B.put in
C.take out
D.put up
A.intercooler
B.compressor
C.cylinder
D.open air
A.to grease
B.greasing
C.oiling
D.lubricating
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