Likewise, pumping water into natural aquifers for seasonal storage tends to be much cheaper than building a big dam, and prevents the great waste of water through evaporation.
同样，把水抽送到天然地下储水层，季节性地储水，往往也比建大坝省更多的钱，同时还防止水分蒸发的浪费。
Chen said about 10m yuan is spent each year clearing 150, 000 to 200, 000 cubic metres of floating waste by the dam.
陈先生说，现在每年大约要花费1000万元来清理大坝库区内15万至20万立方米的漂浮垃圾。
This paper discusses the application and effect of chemical grouting in seepage proof curtain of interception-pollutant dam of Weihai waste treatment plant.
文章讨论了化学灌浆在威海市垃圾处理厂截污坝防渗帷幕中的应用及效果。
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