不可给态水;无效水
The reduced soil moisture is the amount of surface evaporation that can not be recovered. As viewed from exploration and utilization of water resources, the reduction of this unavailable water consumption is of great importance.
其所减少的水分是不可回收利用的地面蒸发水量,从水资源开发看,减少这部分水的无效消耗,有着重要意义。
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