基本解釋震擊器；打撈工具英漢例句雙語例句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(jié)構(gòu)、工作原理和現(xiàn)場試驗效果。jar knocker更多例句專業(yè)釋義能源科學技術(shù)震擊器