基本解释震擊器；打撈工具英汉例句雙語例句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。jar knocker更多例句专业释义能源科學技術震擊器