nine water wells 中文意思是什麼
nine water wells
解釋
九坎-
The wide area network ( wan ) water management system monitors and controls nine waterworks, 900 groundwater wells, seven pumping stations and some 7, 700 kilometers of pipeline in three different pressure zones ? a vast system that supplies the city ' s 3. 4 million population with some 550, 000 cubic meters of water a day
廣域網( wan )水管理系統監視和控制著三個不同地壓地區的9個自來水廠, 900個地下水井, 7個泵站以及7700公里的水管? ?這個巨大的滿足著這個三百四十萬人口城市的的五十五萬立方米的日用水量的系統。
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