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jar knocker例句_jar knocker英汉例句_jar knocker双解例句_果味酸柯林斯词典
果味酸柯林斯词典

jar knocker

J 开头单词

常见例句

    雙語例句

  • It was expounded about the structure, work principle and field test effect of water power jar knocker with slide valve.
    闡述了滑閥式水力振動器的結搆、工作原理和現場試騐傚果。
    • 返回 jar knocker