The structure is then optimized based on above methods, taking structure weight as objective function.
在此基础上，以壳体重量为目标函数对结构进行了优化设计。
Objective To investigate the effect of lidocaine on mucosal surface structure of trachea in rats.
目的：探讨利多卡因对大鼠气道黏膜表面结构的影响。
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。
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