英语语法分析

This paper USES the method of noise spectrum analysis to analyze the enterprise noise of ferroalloys.

运用噪声频谱分析方法对铁合金企业噪声进行了分析。

It introduces process control point of chrome corundum permeable brick and its application in smelting ferroalloys.

介绍了铬刚玉透气砖的生产控制要点和在铁合金精炼中的应用方法。

To increase production capacity of nitriding ferroalloys, reducing production cost, PSA nitrogen plant is selected.

提高氮化合金的生产能力，降低生产成本，采用了PSA制氮系统。