求翻译：秋季和春季主要城市周围的降水量变化都比较小，而且三个实验的结果都是降水量减少，地面升温对降水分布特征没有明显的影响是什么意思？

The precipitation of the fall and spring around the major cities are relatively small, and the results of three experiments are less precipitation, surface temperature had no significant effect on precipitation distribution characteristics

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Around the autumn and the spring main city precipitation change quite is all small, moreover three experimental results all are the precipitation reduce, the ground elevates temperature to the precipitation distributes the characteristic not obvious influence

Fall and spring precipitation around the major cities are quite small, and three experimental results are reduction of precipitation, surface warming on precipitation distribution does not have a significant impact

正在翻译，请等待...