摘要
Rising sea levels,frequent acid rains,days darkened by heavy smog,all these intractable problems conspire to blight the living environment of humankind.A solution admits of no delay.Metal smelting,an indispensable process of economic development,has long been pinpointed as a major culprit behind this degradation,while coke,a vital fuel that provides energy for metallurgy。
Rising sea levels,frequent acid rains,days darkened by heavy smog,all these intractable problems conspire to blight the living environment of humankind.A solution admits of no delay.
