英语语法分析

The chemical treatment main method has the cementation, Azotize, infiltrates the metal.

化学热处理的主要有渗碳、渗氮、渗金属的方法。

Because the liquid nitriding the liquid and the work piece direct conduction heating, reduced the work piece heating-up time, raised the azotize speed.

液体氮化由于液体与工件直接传导加热，缩短了工件加热时间，提高了渗氮速度。