技术创新价值取向历史变迁的多重剖析_科学技术学_新浪博客 关键词] 技术创新；价值取向；历史变迁 [gap=783]Key words] : technological innovation; value orientations; historical changes
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drastic historical changes 历史风云
levels the historical changes 历史演变
historical climate changes 历史气候变化
historical successive changes 历史沿革
And then points out the shortcoming of present research and at the same time puts forward the theoretical and practical significance of this study. Second, the historical changes and the status.
第二，历史变迁与现状分析。
参考来源 - 中国主要粮食作物生产布局变迁及区位优化研究Nationalism has been a major dynamic power in shaping the modern historical changes of overseas Chinese in Southeast Asia.
民族主义是影响近现代东南亚华侨历史变迁的一大动力。
参考来源 - 东南亚华侨民族主义发展研究（1912To explore the status of fish assemblage characteristics and historical changes, investigations on fish assemblage were carried out in the mainstream of the Yellow River in spring(May-June) and autumn(September-November) of 2008.
为了解黄河干流鱼类群落现状及其历史变化,于2008年春季(5-6月)和秋季(9-11月)开展了黄河干流鱼类调查。
参考来源 - 黄河干流鱼类群落特征及其历史变化·2,447,543篇论文数据，部分数据来源于NoteExpress
The chief historical changes were to take place on the mainland.
主要的历史性变化是发生在大陆上。
Once merged, PullRequests preserve a record of the historical changes to your code.
合并后，引入请求保护的历史变迁到您的代码记录。
Historical changes would not happen without heroes making the necessary sacrifices.
没有英雄们的必要牺牲，就不会有历史性的变革。
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