- artificial caving
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принудительная посадка кровли
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
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
Rock climbing — History Styles Technique Equipment and protection Grades (difficulty of climb) Terminology Belaying Abseiling … Wikipedia
Mining — This article is about the extraction of geological materials from the Earth. For the municipality in Austria, see Mining, Austria. For the siege tactic, see Mining (military). For name of the Chinese emperor, see Daoguang Emperor. Simplified… … Wikipedia
Cave diving — is a type of technical diving in which specialized SCUBA equipment is used to enable the exploration of natural or artificial caves which are at least partially filled with water. It is an extension of the more common sport of caving, but is much … Wikipedia
Outward Bound Singapore — Logo of the Outward Bound Singapore Outward Bound Singapore (Chinese: 新加坡外展学校) is part of the network of Outward Bound centres worldwide. While Outward Bound is well established in many other countries, the Outward Bound centre in Singapore has… … Wikipedia
Hennepin Island tunnel — was a convert|2500|ft|m|sing=on long underground passage in Saint Anthony, Minnesota (now Minneapolis) dug beneath the Mississippi River riverbed between 1868 and 1869 to create a downstream spillway for hydro plants, milling and lumber business… … Wikipedia
Castle — This article is about medieval fortifications. For other uses, see Castle (disambiguation). For a list of all castles, see List of castles. For similar but unrelated structures in Japan, see Japanese castle … Wikipedia
Speleology — is the scientific study of caves and other karst features, their make up, structure, physical properties, history, life forms, and the processes by which they form (speleogenesis) and change over time (speleomorphology). The term speleology is… … Wikipedia
Oregon Caves National Monument — Coordinates: 42°05′44″N 123°24′21″W / 42.09556°N 123.40583°W / 42.09556; 123.40583 … Wikipedia
Ascender (climbing) — Jumar redirects here. For the Brazilian footballer, see Jumar José da Costa Júnior. An ascender is a mechanical device used for ascending on a rope. One such device is a Jumar, named after the Swiss factory which developed the first tool for sale … Wikipedia
coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… … Universalium