boring g pump 钻眼用泵

grouting g pump 灌浆泵

backing g pump 前级泵 ; 预抽真空泵

sinking g pump 浸没泵

rotating g pump 旋转泵

boosting g pump 增压泵

sampling g pump 取样泵

steering g pump 转向助力油泵

flushing g pump 冲洗泵