当前学科:船舶动力装置
  • 题目: 单选
    Mist detectors used on large low-speed main propulsion diesel engines monitor and check for the presence of ().

      A . fuel oil vapor at the sludge tank vent
      B . unburned fuel vapors in the scavenge air receiver
      C . lube oil vapors in the crank case
      D . lube oil vapors in the engine room

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