植被甚至可以通过表面灌溉吸收污水，由其在外城或者乡村地带。
Vegetation can even take up effluent via sub-surface irrigation, especially in outer urban and rural sites.
表面上，建造它的目的是为当地提供更好的稻田灌溉及水利发电。
Ostensibly its purpose is to provide more irrigation for local rice paddies, and some hydroelectricity.
沙、砾石、粘土、草、排水、灌溉和对山坡及其表面精准的监控，使棒球运动的理想条件达到最优化。
Sand, gravel, clay, grass, drains, irrigation and a precise tracing on its slopes and surfaces create the ideal conditions for the sport of baseball at the highest level.
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