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back-seated valve例句_back-seated valve英汉例句_back-seated valve双解例句_食材铺反向词典
食材铺反向词典

back-seated valve

B 开头单词

常见例句

    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。
    • 返回 back-seated valve