英语词汇“ostrava-karviná coalfield”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	ostrava-karviná coalfield
释义	Ostrava-Karviná Coalfield Ostrava-Karviná Coalfield in the North Moravian region, Czech Socialist Republic; the primary source of fuel in Czechoslovakia. Total area, 950 sq km. Reserves are about 11 billion tons to a depth of 1,800 m and 6–7 billion tons to a depth of 1,000–1,200 m. In a geological sense, the Ostrava-Karviná Coalfield is part of the Upper Silesian Coalfield. Coal seams occur comparatively close to the surface (800–1,000 m). Up to 80 percent of the coal is suitable for coking. The annual output is about 27 million tons.
随便看	opportunity cost method and best effort opportunity cost of capital opportunity costs opportunity description document opportunity driven multiple access opportunity enterprises, inc opportunity farm for boys and girls opportunity feasibility management opportunity finance network opportunity for advancement opportunity for change opportunity for defect opportunity for growth opportunity for improvement opportunity foundation of america opportunity foundation of central oregon opportunity from perfecting quality opportunity, growth and security initiative opportunity housing reserve fund opportunity illuminator opportunity incentive program opportunity international opportunity international australia opportunity international bank of malawi opportunity knocked

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

Ostrava-Karviná Coalfield