The process may involve the use of molten sodium cyanide mixtures; pack carburizing with activated solid material such as charcoal or coke, gas or oil carburizing, and dry cyaniding.
工艺可能涉及到熔化的氰化钠混合物，带有活性固体物质如活性炭、焦炭等的固体渗碳，气体或油性渗碳剂，还有干法氰化。
The repair methods in production to various troubles of rail of coke-barrier car: base being not solid. serious deform and etc. are introduced.
介绍了在不停产情况下就拦焦车轨道基础不实、轨道严重变形等不同部位故障所采取的不同处理方法。
Direct reduction is an iron smelting process for producing metallic iron using gas, liquid fuels and non-coke coal as energy to reduce pellets, lump ore and fine ore under solid state.
直接还原是一种以气体、液体燃料或非焦煤为能源，使用球团矿、块矿、粉矿在固态下进行还原生产金属铁的炼铁工艺技术。
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