最后是本文的研究意义、研究方法及技术路线。
综述了亚氨基二乙酸合成方法的研究现状，重点介绍了具有工业前景的合成路线及最新的研究结果。
The synthetic mothod of IDA is summarized. The mothod which has a good look in industry application is emphasized.
第1章提出论题，界定研究对象与范围并对相关研究及本文所采用的研究方法与技术路线加以介绍。
Chapter 1 raise the issue and define the objects and their scopes, and then, introduces the methods of research and the technical path.
就这一方法的工艺路线及影响氧化铝溶出率的相关因素进行了实验研究，探讨了微波对粉煤灰的作用机制。
The mechanism of microwave solubilization and influence factors of the extraction efficiency of aluminium oxide by experiment are studied.
介绍了文章的选题背景与意义、研究进展、研究内容，研究的主要思路、方法、技术路线及相关理论基础。
Preface. In this part the background, the significance, the current condition, the content, the outline, the methods, the technique employed, and relative theories are introduced.
具体研究内容如下：1。明确研究目的、技术路线及方法。
Specific studies as follows: 1. Make the objective and the technical route clearly.
具体研究内容如下：1。明确研究目的、技术路线及方法。
Specific studies as follows: 1. Make the objective and the technical route clearly.
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