單項(xiàng)選擇題
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
A.make-up B.desired value C.deviation D.set value
A.the bridge officer on watch B.the chief engineer C.the duty engineer D.the duty motorman
A.open B.open front type C.live front type D.None of the above
A.alternator B.glass thermometer C.burdon tube D.piezoelectric pressure transducer
A.the system is manned manually B.the system is situated remotely from the operator C.the system is controlled automatically D.all the above
A.the capstan B.the collector C.the panels D.the surface
A.distribution boards B.section boards C.emergency switch boards D.main switch boards
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