A contrast study on different gasifying agents of undergroun

J OURNAL OF COAL S E CI NCE& ENGI NEE NG RI

( CHI NA)PP l一1 8l 86

DOI 1 .0 7s2 0— 1—21— 0 1 0/1 4 4 0 10 4 1Vo11 No. June .7 2 2011

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