A.short circuit
B.speed up
C.slow down
D.hunting
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A.live
B.dead
C.excited
D.on line
A.Feed back
B.Negative feed back
C.Close loop
D.Open loop
A.The shaft
B.The mechanical
C.The electric
D.The indicated
A.compressed air
B.hydraulic oil
C.electricity
D.All of the above
A.Alarm
B.Monitoring
C.Auto start-up
D.None of the above
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