coal minings

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الإنجليزية - التركية

تعريف coal minings في الإنجليزية التركية القاموس.

coal mining
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coal mining
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الإنجليزية - الإنجليزية

تعريف coal minings في الإنجليزية الإنجليزية القاموس.

coal mining
Extraction of coal deposits from the Earth's surface and from underground. Because coal was the basic energy source that fueled the Industrial Revolution, the resulting industrial growth supported the large-scale exploitation of coal deposits. In the late 20th century, open pit mines replaced underground mines as the principal source of coal in the industrial nations. The mining of coal from surface and underground deposits today is a highly productive, mechanized operation