(of coal) obtained from far below the surface of the ground, not from opencast mines.
（煤）深矿的
Example sentencesExamples
In the long term, I don't really see a future for deep-mined UK coal.
He ‘listened very carefully to our comments on the coal industry and took on board what we were saying about the need for deep-mined coal from the UK to remain a significant part of electricity generation mix’.
Production of deep-mined coal fell from 204 million tons in 1942 to 175 millions in 1945, though manpower, 766,000 in 1939, had been stabilized at 710,000.
In antiquity tin from Cornwall's streams, increasingly deep-mined by the later 16th cent., was the region's life-blood.
By the end of January 2005, there were no deep-mined collieries left in Scotland; only one left in South Wales, which is an employee buyout; and seven deep-mined collieries left in England.
For centuries, the wealth of Britain was built on deep-mined coal.
Derivatives
deep mining
noun
However, the health risks associated with deep mining were becoming apparent.
Example sentencesExamples
James Brooks, another surface miner and District 28 official, stressed the hazards of deep mining.
Veterans of deep mining call the open-cast workers ‘sunshine miners‘.
In England about 6,000 people are still employed in deep mining and about 575 in Wales.
Proponents of a ban also argued that their more radical proposal would increase employment by requiring an expansion of deep mining.