To minimise leakage and unaccounted-for water,a 20-year programme for the replacement of some 3050 kilometres of watermains was under planning.是什么意思_To minimise leakage and unaccounted-for water,a 20-year programme for the replacement of some 3050 kilometres of watermains was under planning.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句