PDF(990 KB)
Research on the Influence of Boulder on the Drilling Performance of Large Diameter Horizontal Drilling Machine
ZHENG Dong, LIU Weihua, HUANG Da, ZHANG Xiaojing
Journal of Railway Engineering Society ›› 2021, Vol. 38 ›› Issue (9) : 48-53.
PDF(990 KB)
PDF(990 KB)
Research on the Influence of Boulder on the Drilling Performance of Large Diameter Horizontal Drilling Machine
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