The psammophilic shrub species with higher daily transpiration rate had lower average daily water use efficiencies and lower photosynthetic rates and vice versa.

蒸腾速率日均值高的沙生灌木光合水分利用效率日均值低，反之亦然。

youdao

In Beijing, water rates for home use start at just one yuan (about 12 cents) per cubic metre, far below cost, with heavy users paying a bit more.

ECONOMIST: China

Marin County cut urban water use from 170 to 143 gallons a head between 1987 and 1998 by a plan involving staggered water rates.

ECONOMIST: California's economy

The development of biofertilization techniques would also increase water use efficiency by promoting higher nutrient absorption and crop growth rates.

UNESCO: World Water Assessment Programme (WWAP)