据世界银行估计，每天有880亿升的处理水从城市渗漏的管道里流失——从富国和穷国里漏走的水各占这一总量的50%。

The World Bank estimates that 88 billion litres of treated water is lost from leaking urban pipelines every day, a quantity split evenly between rich and poor countries.

youdao

事实上，底面渗漏现象随处可见，供水商也接受了每日每千米管道3500升的最低漏水量。

Indeed, background leakage is so pervasive that water suppliers accept 3, 500 litres of water per kilometre of pipe per day as the minimum achievable loss.

youdao

事实上，底面渗漏现象随处可见，供水商也接受了每日每千米管道3500升的最低漏水量。

Indeed, background leakage is so pervasive that water suppliers accept 3,500 litres of water per kilometre of pipe per day as the minimum achievable loss.

youdao