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Frictional ignition with coal mining bits
Frictional ignition of natural gas-air mixtures by alternative coal-cutter bit shank materials
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Published Year
1990-1999 (2)
Subject
Coal-cutting bits--Testing (2)
Friction (2) *
Coalbed methane--Combustion (1)
Methane--Combustion (1)
Mine explosions--Prevention (1)
Author
Courtney, Welby G. (1)
McDonald, L. Garner. (1)
