Technical progress in the mechanization of roadway drivage in coal and stone; increase in the share of roadways driven by heading machines : report / transmitted by the Government of the Union of Soviet Socialist Republics.
1982
Полное описание
Условное обозначение[E/ECE/]COAL/GE.1/R.50/Add.1
ЗаглавиеTechnical progress in the mechanization of roadway drivage in coal and stone; increase in the share of roadways driven by heading machines : report / transmitted by the Government of the Union of Soviet Socialist Republics.
АвторыUSSR
ДатаGeneva : UN, 3 Feb. 1982.
Описание
10 p. : tables.