seepage areas 渗出区域
With the improvement of irrigation and farming technique, the unavailable evaporation and seepage are reduced and the effective crop transpiration is increased in irrigation areas.
灌区耗水结构随着灌溉和农业耕作技术的改进，无效的蒸发、渗漏减少，有效的作物蒸腾增加。
The concrete faceplate and plinth upstream are key areas of water retaining and seepage prevention. The anti seepage effectiveness of face affects the imperious effect and the stability of the dam.
而此种坝型的上游面混凝土面板及址板是整个坝体挡水防渗的关键部位，面板防渗的好坏直接关系到大坝的防渗效果及其安全稳定性。
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