Longwall mining panel at the Clinchfield McClure Mine in Southwest Virginia. Longwall mining is a highly efficient method of coal removal, taking nearly 100 percent of a coal seam, but poses subsidence hazards to above ground structures.
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Details
Creative#:
TOP22129328
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
No
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No
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