That increases the overall efficiency of the plant at little cost, since the coal can be treated without having to generate any extra heat.
那样，花费少量的成本就能够提升电站整体的效率，因为无需追加额外的热量就能完成对煤炭的预处理。
2
Coal from this region is low in sulphur, and so burns more cleanly, but has a relatively low energy density unless treated.
该区域的煤含硫量低，也因此更为清洁，但是在处理前能值(energy density)相对较低。
3
The victims are being treated at the Baba Farid centres for special children in Bathinda – where there are two coal-fired thermal plants – and in nearby Faridkot.