Synonyme wurden verwendet für:
Kohle
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keywords:(Kohle)
Coal transportation: Belt conveyors, combined rail-barge, and slurry pipelines
Coal shipping equipment at Muroran Harbour
Car transporter allows stripping two seams simultaneously at Huntsville-Sinclair Mine
A Multifunctional Drilling Fluid for Coalbed Methane Drilling
A haulage system with gathering locomotives only
A haulage system with gathering locomotives only
Accidents at coal face and their prevention