HAO Shi-jun. The development of Horizontal Directional Drilling in coal mines[J]. COAL GEOLOGY & EXPLORATION, 2004, 32(2): 57-59.
Citation:
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HAO Shi-jun. The development of Horizontal Directional Drilling in coal mines[J]. COAL GEOLOGY & EXPLORATION, 2004, 32(2): 57-59.
|
HAO Shi-jun. The development of Horizontal Directional Drilling in coal mines[J]. COAL GEOLOGY & EXPLORATION, 2004, 32(2): 57-59.
Citation:
|
HAO Shi-jun. The development of Horizontal Directional Drilling in coal mines[J]. COAL GEOLOGY & EXPLORATION, 2004, 32(2): 57-59.
|