单词	valve ports
释义	valve ports valve ports The openings in the cylinder heads of a reciprocating engine through which the fuel-air mixture flows into the cylinder and burned gases leave.
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。