煤炭分类 meaning in Chinese
grade of coal
Examples
- Classification of chinese coals
中国煤炭分类 - Study on difference between the international coal classification standard and chinese coal classification standard
煤炭分类国际标准与中国标准异同之比较 - 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
摘要运用制定《中国煤炭分类》国家标准所依据的近600个烟煤煤层煤样实测数据，分析了中国不同煤种烟煤镜质组平均最大反射率的分布范围，探讨了烟煤镜质组平均最大反射率与中国煤分类系统之间的关系。