Preliminary Application of Inclination-Correcting Boring Tool[J]. COAL GEOLOGY & EXPLORATION, 1987, 15(1): 60-62.
Citation:
|
Preliminary Application of Inclination-Correcting Boring Tool[J]. COAL GEOLOGY & EXPLORATION, 1987, 15(1): 60-62.
|
Preliminary Application of Inclination-Correcting Boring Tool[J]. COAL GEOLOGY & EXPLORATION, 1987, 15(1): 60-62.
Citation:
|
Preliminary Application of Inclination-Correcting Boring Tool[J]. COAL GEOLOGY & EXPLORATION, 1987, 15(1): 60-62.
|