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jar knocker是什么意思，jar knocker的翻译，jar knocker音标、读音、用法和例句_贰靶汉英词典
贰靶汉英词典

jar knocker

J 开头单词

基本解释

  • 震击器；打捞工具

英汉例句

    双语例句

  • It was expounded about the structure, work principle and field test effect of water power jar knocker with slide valve.
    阐述了滑阀式水力振动器的结构、工作原理和现场试验效果。

专业释义

    能源科学技术

  • 震击器