Synonyme wurden verwendet für:
Bergbau
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keywords:(Bergbau)
Surface Testing and Evaluation of the Multiple-Unit Continuous Haulage System
Study of Design and Development of a Coal Injector for Coarse Slurry Transport
Study of Continuous Face Haulage Systems
Strategic Research to Enable NASA's Exploration Missions Conference (Abstracts)
State of the Art of Underground Coal Mine Tracked Vehicle Brake Systems. Revised Report
Space Resource Utilization: Near-Term Missions and Long-Term Plans for Human Exploration