The influence of coalcharacteristic indices such as caloricity ash content and water content on the coal handling system is discussed in the aspects of economy and reliability.
从经济性和可靠性角度分析探讨了煤的发热量、灰分、水分等衡量煤质的特性指标对输煤系统的影响。
2
A major disadvantage of coal combustion-and characteristic of industrial cities-has been air pollution by soot, dust, ash, exhaust and large amounts of the greenhouse gas carbon dioxide.