Reducing Dust at Longwall Shearers by Confining the Dust Cloud to the Face Published: 1981 Total Pages: 30 Get eBook
Improved Shearer-clearer System for Double-drum Shearers on Longwall Faces Natesa I. Jayaraman Published: 1985 Total Pages: 20 Get eBook
High-resolution seismic reflection techniques for mapping coal seams fron the surface C. Melvin Lepper Published: 1976 Total Pages: 418 Get eBook