Based on analyses of about 600 coal - seam samples used for " classification of chinese coal " , the range of mean maximum reflectance of vitrinite ( r ( superscript o subscript max ) , % ) of different classes of bituminous coal was presented and the correspondence between them was discussed 摘要運(yùn)用制定《中國煤炭分類》國家標(biāo)準(zhǔn)所依據(jù)的近600個(gè)煙煤煤層煤樣實(shí)測數(shù)據(jù),分析了中國不同煤種煙煤鏡質(zhì)組平均最大反射率的分布范圍,探討了煙煤鏡質(zhì)組平均最大反射率與中國煤分類系統(tǒng)之間的關(guān)系。