Study on the characteristics and variation regulations of coal quality in A'ai mining area of Tabei coalfield孟福印, 施哈宁7-9
Discussion on the variation of other quality index on different ash yield condition for Shendong gasifying coal龚福林10-11,13
Study on problems of determination of nitrogen in the coal using semi-micro gasification method史明志, 孔令坡, 李月清17-19,22
The confirmation of the method of burning from the substituted Chinese standard for American standard in coal ash analysis by X-ray fluorescence张云红, 智顺20-22
