Technical advances in the mechanization and automation of face work in steeply-sloping seams (35-90 degrees) ; choice of methods of working such seams according to geological, technical and economic conditions : note / by the secretariat.
1981
Notice détaillée
Symbole[E/]ECE/COAL/55
TitreTechnical advances in the mechanization and automation of face work in steeply-sloping seams (35-90 degrees) ; choice of methods of working such seams according to geological, technical and economic conditions : note / by the secretariat.
AuteursUN. ECE. Group of Experts on Productivity and Management Problems in the Coal Industry (11th sess. : 1980 : Geneva)
UN. ECE. Secretariat
UN. ECE. Secretariat
DateGeneva : UN, 2 Nov. 1981.
Description
[23] p., including annex : figures