- permanent headframe
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постоянный надшахтный копёр
Англо-русский словарь технических терминов. 2005.
permanent headframe
Смотреть что такое "permanent headframe" в других словарях:
Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold … 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
