Coal may be processed to form a liquid or gas which is more usable, and in turn can be converted to liquid hydrocarbon fuels.
煤可以加工成更有用的液体或气体，进一步可以转化成液态烃燃料。
2
Commodities Products that can be processed and resold in the market such as gold, silver iron, coal, aluminum, etc.
商品能加工并在市场上转卖的产品，如黄金、银、铁、煤、铝等。
3
The machines use products out of sand, stone, coal ash, cinder, coal gangue, ore tailings, ceramic, perlite and other industrial wastes processed into a variety of new wall materials.