Underground coal minig - global picture and brief overview

Underground coal minig - global picture and brief overview

Underground mining currently accounts for a bigger share of world coal production than opencast • About 60% from the total production is from underground mines • In several major coal producing countries surface mining is more common. For example, surface mining accounts for around 80% of product...

書誌詳細
第一著者:	Fuginski, Zygmunt
フォーマット:	Documento de Conferencia
言語:	spa
出版事項:	2021
オンライン･アクセス:	http://repositorio.uptc.edu.co/handle/001/7789

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