1.Chongqing Research Institute, China Coal Science and industry group;2. State Key Laboratory of the Gas Disaster Detecting, Prevention and Emergency Controlling
TANG Da-Yong, SUN Dai, ZHANG Ning, ZHANG Yu, SUN Sheng. Research on a Double-channel Drill Rods for Horizontal Directional Drilling[J]. Modern Mining, 2014, 30(05): 150-152.