- adits of short access length
-
штольни с небольшими подходными интервалами
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
Channel Tunnel — Map of the Channel Tunnel Overview Location English Channel (Strait of Dover) Coordinates Folkestone … Wikipedia
tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening … Universalium
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