sewage，wastewater污水、废水语例句1Two Stage Anaerobic-Contacting Oxidation Process Treatment ofSewage Wastewater from Scenic Spot二级厌氧-接触氧化工艺处理风景区污水 2Plan on treating sewage wastewater in housing estate小区生活污水的治理方案
sewerage和sewage区别sewerage sewerage[简明英汉词典][?sju?rid?]n. 污物处理(系统) sewage sewage[简明英汉词典][?sjuid?]n. (下水道里的)污物
