但是，不合理的利用和改造自然是大自然遭受到了破坏，也给人类的今后带来了灾难。
However, the irrational use and the transformation is of course subject to the destruction of nature, but also to the future of mankind has brought disaster.
在文章中引出热能利用系数，并通过热能利用系数值来鉴别一些不合理的利用能量系统。
The author cites a heat energy utilization factor which distinguish reasonable and unreasonable use in energy system.
并从这种动态变化和当前利用现状着手，评价当前土地利用中的合理和不合理的利用方式。
And the article appraises the rational and unreasonable use way in the present land use through the current situation of land use dynamic change.
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