The introduction typically begins with a general statement of the problem area, with a focus on a specific research problem, to be followed by the rational or justification for the proposed study.
引言一般以对该领域的简单描述开始，同时关注某一特定的研究问题，接下来是拟定研究的基本原理。
Global optimization is a general and important problem in the area of scientific research and engineering application.
全局优化是科学研究和工程应用中的一个普遍而重要的问题。
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