1) subbituminous coal
次烟煤
1.
It is necessary to add a group of subbituminous coal in the Chinese Coal Classification System, so that the Chinese Coal Classification can match the international system.
阐述了世界低煤阶煤的资源、生产、消费及其分类，国际低阶煤分类日趋统一，结合我国资源特点，建议增加次烟煤（ｓｕｂｂｉｔｕｍｉｎｏｕｓｃｏａｌ）类，便于和国际低阶煤分类衔接。
2) subanthracite
次无烟煤
3) subbituminous coal
次煤烟
4) meta-anthracite
次无烟煤(挥发分低于2%)
5) bituminous coal
烟煤
1.
Effects of particle size and heating rate on swelling characteristics of a bituminous coal;
粒径及加热速率对烟煤膨胀特性的影响
2.
Correspondence between mean maximum reflectance of vitrinite and classification of bituminous coals;
烟煤镜质组平均最大反射率与煤种之间的关系
3.
Study on the characteristic of nitrogen release for bituminous coal during pyrolysis;
烟煤热解过程中氮的释放特性研究
6) soft coal
烟煤
1.
An experimental study on new-style gasification of high volatile content soft coal and high quality SiC byproduct preparation;
低变质烟煤新型气化联产高品质碳化硅实验研究
2.
Structure character,activity of soft coal and its influence for β-SiC synthetic reaction in low temperature;
烟煤微晶结构对低温合成β-SiC的影响
3.
Research on the fuel substitution of lignite for soft coal with numerical method;
褐煤锅炉燃用烟煤的数值研究
补充资料：次烟煤
分子式：
分子量：
CAS号：
性质：见烟煤。
分子量：
CAS号：
性质：见烟煤。
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