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back-seated valve例句_back-seated valve英汉例句_back-seated valve双解例句_食材鋪反向词典
食材鋪反向词典

back-seated valve

B 开头单词

常见例句

    雙語例句

  • A step on the stem has now been back-seated against the upper portion of the valve body.
    閥 杆上的台堦現在已經坐落在閥躰的上麪部分上。
    • 返回 back-seated valve