Its Preparation Methods的意思|示意

The preparation methods ofm-phenylene diamine, its chemical and physical properties and the USES as curing agent of epoxy resin and dye intermediate were described and reviewed in this paper.

本文介绍了间苯二胺的各种理化性能、制备方法，以及在环氧固化剂、染料方面的应用情况。

This paper introduces the structure, surface modification, preparation methods of silica white, and its application in recent years.

简述了白炭黑的结构、表面改性和制备方法，以及近年来的应用情况。

This paper reviewed the preparation methods and structural characterization of aluminoxane and described in details its function in metallocene catalyst system.

综述了铝氧烷的制备方法及结构表征，并对其在茂金属催化剂中的作用作了详细介绍。

Methods: We distinguished the bee glue by the thin layer chromatography method, determined its total flavanone content in the preparation by the spectrophotometric method.

方法：用薄层色谱法鉴别蜂胶；用分光光度法测定制剂中蜂胶总黄酮的含量。

The purpose of the preparation of Gardenia Long scattered and establish quality control methods to observe its clinical efficacy.

目的制备栀龙散，建立质量控制方法，观察其临床疗效。

The properties and preparation methods of nanomaterials were reviewed, its application and development trend in chemical were discussed.

介绍了纳米物质的特性、制备方法及其在精细化工中的应用，对其发展前景进行了展望。