The main purpose of N-aromatic hydroxylamines was introduced. Various synthetic methods were reviewed and compared with each other.
扼要地介绍了(杂)芳羟胺的主要用途,详细介绍了(杂)芳羟胺的合成方法,并进行了分析比较。
The purpose of this column is to show the number of the recursive step n that produced the row.
这个列的作用是表明产生行的递归步骤 n 属于第几步。
This paper generalizes the patterns and problems of enterprise technique reform nowadays, and discuss the focal Thent. The n explain the information technique, BRP and their purpose.
本文首先概括了企业技术改造当前面临的形式和问题,进而讨论了技改重点,然后说明技术改造中的信息技术和BRP问题以及它们的作用、意义等。
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