- underhand stoping
-
• почвоуступная выемка• почвоуступная разработка• скрытое разрушение почвы
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
Mining in the Upper Harz — The headframe of the Emperor William Shaft in Clausthal is one of the oldest surviving winding towers in Germany … Wikipedia
mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… … Universalium