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Frictional ignition of natural gas-air mixtures by alternative coal-cutter bit shank materials

Published Year

• 1990-1999 (1)

Subject

• Coal-cutting bits--Testing (1)
• Coalbed methane--Combustion (1)
• Friction (1) *
• Mine explosions--Prevention (1)

Author

• McDonald, L. Garner. (1) *

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