?竖井掘进机

... 竖井掘进机 shaft boring machine; shaft jumbo 隧道掘进机 rock tunnel machine; tbm; trnnel boring machine; tu el borer; tu el boring machine; tu eller; tu elling machine; tunnel borer; tunnel boring machine; tunneler; tunneller; tunnelling machine 隧洞掘进机 mole; tunneling machine ...