熔炼基本上是一个熔化过程，在此过程中炉料的组元在熔融状态下分解为两层或多层，这些层次可以是熔渣、冰铜、黄渣或金属。
Smelting is essentially a melting process in which the components of the charge in the molten state separate into two or more layers which may be slag, matte, speiss or metal.
最终，在泥土和岩石中的水与微生物的作用下，金属箱会遭到侵蚀，玻璃会开始分解，那些危险物质将泄漏出来。
Eventually, the cans will corrode, the glass will start to break down, thanks to water or microbes in the soil and rock, and the dangerous contents will leak out.
常规的化学蒸发沉淀涂层工艺需要一种容易在相当低温度下挥发并且在较高温度下与基体接触时能分解成纯金属的金属化合物。
Conventional CVD coating process requires a metal compound that will volatilize at a fairly low temperature and decompose to a metal when it contacts with the substrate at higher temperature.
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