Thermomechanical method for secondary breakage of hard rocks /
Thirumalai, K.
Thermomechanical method for secondary breakage of hard rocks / K. Thirumalai, S.G. Demou and R.L. Fischer. - Washington, DC : U.S. Dept. of the Interior, Bureau of Mines, 1975. - 9 p. : ill. - Report of investigations ; 8057 . - United States. Bureau of Mines. Report of investigations ; 8057 . - Report of investigations (United States. Bureau of Mines) ; 8057 .
Rock drills.
Rock excavation.
VF / 551.3/82/T447
Thermomechanical method for secondary breakage of hard rocks / K. Thirumalai, S.G. Demou and R.L. Fischer. - Washington, DC : U.S. Dept. of the Interior, Bureau of Mines, 1975. - 9 p. : ill. - Report of investigations ; 8057 . - United States. Bureau of Mines. Report of investigations ; 8057 . - Report of investigations (United States. Bureau of Mines) ; 8057 .
Rock drills.
Rock excavation.
VF / 551.3/82/T447