Mankind is facing the different global problems in the present age.
全球问题，是在世界范围内普遍存在的社会问题。
From the thinking of both position variables and size variables, a global method that can solve the optimization problems was present in this paper.
从元件位置和元件尺寸两个方面考虑，提出了一种全局结构优化设计方法。
Mankind is facing the different global problems in the present age. The duality of social effect caused by science and technology is obvious unprecedentedly.
当代人类面临种种全球性问题，科技社会效应的两重性空前突出。
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