Research on the Key Technology of Ultra Long Directional Drilling in Railway Tunnel in Mountainous Area

XIE Yi, XU Zhengxuan, CHEN Minghao, ZHANG Guangze, FENG Tao, WANG Sheng, WU Jinsheng

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Journal of Railway Engineering Society ›› 2022, Vol. 39 ›› Issue (8) : 1-5.

Research on the Key Technology of Ultra Long Directional Drilling in Railway Tunnel in Mountainous Area

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{{article.zuoZheEn_L}}. {{article.title_en}}[J]. {{journal.qiKanMingCheng_EN}}, 2022, 39(8): 1-5

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