Книга: Freudemacher Percy William «Electrical Mining Installations»

См. также в других словарях:

• 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

• Moscow State Mining University — Московский государственный горный университет Established September 4th, 1918 Rector Korchak, Andrey Vladimirovich Location Moscow, Russia …   Wikipedia

• Rosario Mining Company — The Rosario Mining Company was an American owned corporation that owned and operated the Rosario mine, a gold and silver producer in central Honduras. HistoryThe mountains around Tegucigalpa were largely known to contain gold and silver deposits… …   Wikipedia

• Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium

• environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

• Residual-current device — A two pole residual current device A Residual Current Device is a generic term covering both RCCBs and RCBOs. A Residual Current Circuit Breaker (RCCB) is an electrical wiring device that disconnects a circuit whenever it detects that the… …   Wikipedia