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back-seated valve是什么意思，back-seated valve的翻译，back-seated valve音标、读音、用法和例句_沉淀汉英词典
沉淀汉英词典

back-seated valve

B 开头单词

基本解释

  • [机械工程]后座阀

英汉例句

    双语例句

  • A step on the stem has now been back-seated against the upper portion of the valve body.
    阀 杆上的台阶现在已经坐落在阀体的上面部分上。

专业释义

    机械工程

  • 后座阀