- opening up by adits
- 平硐开拓
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
English-Chinese dictionary of mining (英汉矿业大词典). 2013.
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
Corris Railway — Rheilffordd Corris Locale Mid Wales Terminus (Original) … 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
King William Street tube station — Infobox Closed London station name=King William Street owner=City South London Railway locale=City of London platforms=2 start=1890 end=1900 replace=Bank tubestation=yesKing William Street was the original but short lived northern terminus of the … Wikipedia
Midford — Coordinates: 51°20′42″N 2°20′43″W / 51.3451°N 2.3454°W / 51.3451; 2.3454 … Wikipedia
Mining in Cornwall — first began in the early Bronze Age approximately 2,150 BC and ended with the South Crofty tin mine closing in 1998.HistoryMining in Cornwall has existed from the early Bronze Age around 2,150 B.C. Cornwall is thought to have been visited by… … Wikipedia
Slate industry — The slate industry is the industry related to the extraction and processing of slate. Slate is either quarried from a slate quarry or reached by tunneling in a slate mine . Common uses for slate include as a roofing material, a flooring material… … Wikipedia
Bralorne, British Columbia — Bralorne is an historic underground gold mining community in the Bridge River District, some sixty dirt road miles west of the town of Lillooet.BackgroundGold has been the central element in the area s history going back to the 1858 1860 Fraser… … Wikipedia