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blasting factor

См. также в других словарях:

  • blasting —       process of reducing a solid body, such as rock, to fragments by using an explosive. Conventional blasting operations include (1) drilling holes, (2) placing a charge and detonator (blasting cap) in each hole, (3) detonating the charge, and… …   Universalium

  • Relative effectiveness factor — or R.E. factor is a measurement of an explosive s power for military demolitions purposes. It is used to compare an explosives effectiveness relative to TNT by weight only. This is so engineers can substitute one explosive for another when they… …   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

  • 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

  • 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

  • Bresle method — The Bresle method is a method used to determine the concentration on soluble salts on surfaces prior to coating applications. These salts can cause serious adhesion problems after time. The Bresle method is the industry s standard for determining …   Wikipedia

  • plant disease — ▪ plant pathology Introduction       an impairment of the normal state of a plant that interrupts or modifies its vital functions.       All species of plants, wild and cultivated alike, are subject to disease. Although each species is… …   Universalium

  • Nitroglycerin — This article is about the chemical properties of nitroglycerin and its use as an explosive. For medical and pharmacological applications, see glyceryl trinitrate (pharmacology). Nitroglycerin …   Wikipedia

  • Jubilee (comics) — Superherobox caption=Jubilee as Wondra. Art by Paco Medina. comic color=background:#ff8080 character name=Wondra real name=Jubilation Jubilee Lee species=Human Mutant publisher=Marvel Comics debut= Uncanny X Men #244 (May, 1989) creators=Chris… …   Wikipedia

  • 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

  • Cyclops (comics) — Cyclops Cyclops Art by John Cassaday. Publication information Publisher Marvel Comics …   Wikipedia

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