研究背景及意义(Research Background and Significance) 中国煤与瓦斯突出灾害的严重性(Seriousness of Coal and Gas Outburst Hazard in China)
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世界十大港口之一 » One of the world's 10 largest ports 研究背景及重要意义 » Research background and significance 在生活中我们是很好的朋友,但是在学习上我们也是对手 » Living we are good friends but in studies we are competitors ..
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Describes the research background and significance of the definition of related concepts.
介绍了研究背景和意义,相关概念的界定。
The research background and significance of structure dynamic optimization are described briefly.
阐述结构动力学优化设计的研究背景和意义。
The first part introduces the research background and significance as well as the research methods and research ideas.
其中,第一部分阐述文章的研究背景和研究意义,介绍本文的研究思路与方法。
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