轮机英语【大管甲类】题库

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Early stern-tube bearing used bearing materials such as lignum vitae which were lubricated by ______...

Early stern-tube bearing used bearing materials such as lignum vitae which were lubricated by ______.
  • A. oil
  • B. fresh water
  • C. grease
  • D. sea water
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轮机英语【大管甲类】-题库

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第一章 船舶主推进装置
第二章 船舶辅助机械
第三章 船舶电气和自动化
第四章 船舶轮机管理业务
第五章 国际公约、规则
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