轮机英语【轮机长】题库

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The cylinder oil is pumped into the cylinder (via non-return valves) when the piston rings pass the ...

The cylinder oil is pumped into the cylinder (via non-return valves) when the piston rings pass the lubricating orifices, during ______.
  • A. the upward stroke
  • B. the downward stroke
  • C. the power stroke
  • D. the suction stroke
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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
专项训练一
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