隐喻是人类语言的普遍现象和重要认知机制。

Metaphor is a general phenomenon and an important cognitive mechanism.

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研究结论：土地利用系统中客观存在的自组织性质，对于揭示蕴含在土地利用系统中的普遍现象和机制具有意义。

Thes elf-organized character of land use system is significant to reveal the in-ternal universal phenomenon and mechanism.

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研究目的：探索蕴含在土地利用系统中的普遍现象和机制，是现代土地科学发展必须回答的重要命题。

The purpose of the paper is to explore universal phenomenon and mechanism in land use system, a proposition which has to be answered by modern land science.

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