云是陆地水循环系统的可见部分，将生命之水从海洋带到陆地。
They are the visible part of the terrestrial water cycle, carrying water - the source of life-from the oceans to the land.
苹果树的大面积种植加快了土壤深层水分消耗，最终可能影响这一区域的陆地水循环。
That a large number of apple tree planted will result in the desiccation of field soils on the upland, which will affect the water cycle in this area.
河川天然径流量变化与趋势预测研究对陆地水循环与水量平衡研究和水资源利用等均有重要意义。
Natural runoff variety and current forecasting researches are very useful for terrestrial water cycling and water balance research and water resources management.
许多种环境问题是由水循环系统，空气系统和陆地系统综合作用的结果。
A number of different environmental problems are associated with water, air, or land systems.
许多种环境问题是由水循环系统，空气系统和陆地系统综合作用的结果。
A number of different environmental problems are associated with water, air, or land systems.
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