主要研究结果如下：1再生体系的比较和优化。
The main results are as follows: 1 The comparison and optimization of regeneration systems.
主要研究结果如下：(1)棉田天敌群落结构调查。
The research contents and results were listed as follows: (1) the investigation of the natural enemy community structure.
本文的主要研究结果如下：一、现行加拿大体育管理体制相对完善。
The main studies are as follows:First, the existing Canadian sports management system is relatively perfect.
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