城市污水的污泥处理
municipal sewage sludge treatment
灌溉水污染
Irrigating water pollution
国外污水灌溉新技术
New Techniques of Waste Water Treatment in Abroad
农田污水灌溉
sewage irrigation in farmland
污水灌溉
effluent irrigation
reclaimed wastewater irrigation
irrigation with domestic effluent water
irrigation with sewage effluent
sewing irrigation
waste water irrigation
irrigation with effluent
Sewage
sewage irrigation
wastewater irrigation
sewage-irrigation
sewage irrigated soil
对节水灌溉的几点认识
Some Knowledge of Water Saving Irrigation
灌溉水水量
irrigation water quantity
节水灌溉的三个体系
The Three Systems of Water Saving Irrigation
3国际防止生活污水污染证书
International Sewage Pollution Prevention Certificate 1973 197
城市污水污泥
municipal sewage sludge
Sewage sludge
Municipal wastewater sludge
大连紫光凌水污水处理有限公司
dalian ziguang lingshui sewage treatment co.
Ltd.
防止船舶生活污水污染规则
Regulations for Preventing Pollution by Sewage from Ships
工业废水为主的污水厂
industrial wastewater treatment plant
国际防止污水污染证书
International Sewage Pollution Prevention Certificate {= ISPP Certificate