分析显示，自2004年以来，包含“环境变化”或“气候变化”等关键词的论文数量迅速增加。
Analyses reveal that the number of papers including the keywords "environmental change" or "climate change" has increased rapidly since 2004.
该文对科技论文摘要和关键词写作的一般要求进行了探讨，介绍摘要写作技巧及应注意的几个问题。
The paper approaches the claims on writting science and technology paper's abstract and key words and introduces the writting skills of abstract and the questions needing attention.
作为科技论文的重要组成部分，英文标题、摘要及关键词在扩大国际间学术交流方面起着不容忽视的作用。
As the important component part of Science-tech paper, the English title, and key words play crucial role in extending international academic exchanges.
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