美国各地许多城镇已经开始在其现有污水处理系统当中采用这种覆有细菌生物被膜的半圆形设备。
Several towns nationwide have started using the domes lined with bacterial biofilm to clean water in existing facilities.
现代灌溉设备，每台的日喷水量可以达到四百五十万升，从而形成了一种像群岛一样的由几何圆形的绿色农田所构成的景观。
Modern irrigation devices, each capable of spraying 4.5 million liters of water a day, have produced a landscape dominated by geometric patterns of circular green islands of crops.
现代灌溉设备每台的日喷水量可以达到四百五十万升，从而形成了一种像群岛一样的由几何圆形的绿色农田所构成的景观。
Modern irrigation devices, each capable of spraying 4,5 million liters of water a day, have produced a landscape dominated by geometric patterns of circular green islands of crops.
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