This dissertation holds the objective of land sustainable use in the process of urbanization mainly focused on two aspects: farmland protection and structure optimization.
结合城市化进程的特殊研究背景，本文认为城市化进程中土地持续利用的研究目标主要有两个方面：农地保护与结构优化。
The article studies the optimization of idler structure and process reliability in mass production.
本文研究了托辊结构的优化与大批量生产的工艺可靠性问题。
To improve the practicability and rationality of enterprise process structure optimization, an optimizing method based on directed hypergraph and resource constraint is presented.
为了提高企业过程结构优化的实用性、合理性以及计算机支持性，提出了基于有向超图和资源约束的优化方法。
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