ash-free coal
英 [æʃ friː kəʊl]
美 [æʃ friː koʊl]
低灰煤；不含灰份煤
双语例句
- The results showed that the coal extraction rate and the ash-free coal performances obtained would be closely related to the raw coal properties and to the technique conditions.
结果表明：煤的萃取率及所得无灰煤的性能与原煤性质密切相关，还与工艺条件有关； - The paper reported that the specific surface, the pore-size distribution and the specific reaction rate of gasification of coal chars with different rank, ash-free coal chars and residue chars with different base carbon conversion rate were measured with a porosity apparatus and a pressurized thermo-balance.
本文采用孔隙结构测定装置及加压热天平测定了不同品位煤焦、除灰煤焦、不同基碳转化率时残焦的比表面积及孔隙分布、气化反应比速率。