In some works, the older method of melting the glass in large pots or crucibles is still adhered to, although the old-fashioned coal-fired furnaces have nearly everywhere given place to the use of producer gas and regenerators.
6 billion project to build coal-fired power plants and a deep-sea port in the Bay of Bengal with Japanese funding, as it seeks to ease a chronic energy shortfall
coal-fired与发音含义,同义词,反义词,翻译,刑和更多的