Considering its rich resources and utilization range, people find leancoal has excellent economic benefit.
同时根据贫煤的资源量和使用范围，使用贫煤具有良好的经济效益。
2
Temperature reduction leads to increasing N_2O formation, but to reducing NOformation; bituminous coal yields more N_2O than leancoal.
降低温度导致N_2O生成量增加而同时NO生成量减少，烟煤N_2O产量要比贫煤高一些。
3
The analysis results of bituminous coal and leancoal are same, but there are some differences with analysis results of anthracite coal in low temperature.