Synonyme wurden verwendet für:
Steinkohlenbergbau
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keywords:(Steinkohlenbergbau)
Big wheel loaders handle many jobs
Airlift and lift equipped with container feeders
Transportation of pipes, long lumber, and rails in Friedrich Heinrich mine
Development of vertical drum (Dranyam) shearer loader
Shuttle-car accidents in thin seams
Good roads essential in strip-mine truck haulage
Entry driving with cable reel shuttle cars
Substantial progress by no means restricted in 1939 to mechanical loading and transport at face
Haulage delays: Causes and remedies
Face pressure and cleat in underground workings
Double tracked rooms speed up pit car loading
In mine transportation good track plus planned haulage equals safety and efficiency
Safety problems in coal mining
Montana. The colstrip operation in Montana
Experiments into practical application of Hunslet diesel tractor at Merry Lees Colliery
Transportation power supply costs
Transportation of material by underground suspension monorail railway