MEI Jing-cai, WU Run-ze. PRELIMINARY REMARK ABOUT THE CARDINAL FUNCTION OF AMERICAN’S TH-100A DRILL TRUCK BORER[J]. COAL GEOLOGY & EXPLORATION, 1994, 22(1): 66-68.
Citation: MEI Jing-cai, WU Run-ze. PRELIMINARY REMARK ABOUT THE CARDINAL FUNCTION OF AMERICAN’S TH-100A DRILL TRUCK BORER[J]. COAL GEOLOGY & EXPLORATION, 1994, 22(1): 66-68.
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PRELIMINARY REMARK ABOUT THE CARDINAL FUNCTION OF AMERICAN’S TH-100A DRILL TRUCK BORER

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  • After the production tests of nine bore-holes in two exploring areas of Heilongjiang Province,some preliminary remarks about the cardinal function of TH-100A drill truck borer and the drilling method suitable for it are made.FUrther some improving proposals are put forward.
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