Synonyme wurden verwendet für:
Coal mines and mining
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keywords:("Coal mines and mining")
Safety of underground transport
Safety of underground transport
Locomotive and mine-car systems
Extraction of stoops by shuttle cars and loaders
Haulage accidents in coal mines
Aerial ropeway for transporting coal
The Tilmanstone aerial ropeway
The prevention of haulage accidents
A haulage system with gathering locomotives only
A haulage system with gathering locomotives only
Development of vertical drum (Dranyam) shearer loader
Development of vertical drum (Dranyam) shearer loader
Belt pulls shuttle car output up 7 percent grade at Standard
Man-riding haulages in Lancashire
Haulage traffic expedited by dispatching
Big wheel loaders handle many jobs
Airlift and lift equipped with container feeders
Shuttle-car accidents in thin seams
Good roads essential in strip-mine truck haulage