Continuous mining machine cuts coal in both directions of travel eliminating downtime caused by retreating across face to start new cut.
Bidirectional Continuous Coal Miner
NASA Tech Briefs ; 8 , 1
1984-04-01
Sonstige
Keine Angabe
Englisch
Miner for Cutting Entry Passages in Coal Seams
NTRS | 1984
|Enhancing continous miner flexibility
Tema Archiv | 1994
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