在过去的几十年中，我们埋头研究人类工作效率的驱动因素。
For the past few decades we have buried ourselves in research into the drivers of human performance.
不合理人类活动是草地退化的主要驱动因素，决定了自然条件基本相同地区的草地退化强度的空间分异。
Irrational human activities, which decide the spatial distribution of grassland degradation intensity under the similar natural conditions, are the main driving factors of grassland degradation.
人类活动是该流域侵蚀景观时空变化的主要驱动因素。
Human activity is the main driving factor for the dynamic variation of spatial pattern of landscape in this area.
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