救援井用大直径贯通式潜孔锤及钻头的研制
, 殷琨, 何将福, 殷其雷 Development and test of a large diameter hollow-through DTH air hammer and drill bit used in rescue well
GAN Xin, YIN Kun, HE Jiang-fu, YIN Qi-lei
, YIN Kun, HE Jiang-fu, YIN Qi-lei 