基本解釋震擊器；打撈工具英漢例句雙語(yǔ)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(dòng)器的結(jié)搆、工作原理和現(xiàn)場(chǎng)試騐傚果。jar knocker更多例句專(zhuān)業(yè)釋義能源科學(xué)技術(shù)震擊器