| 1. | For many years chlorine has been the major disinfectant used in water and wastewater treatment plants . 氯作为水和废水处理厂的主要消毒剂已有许多年。 |
| 2. | Wastewater treatment plants - part 14 : disinfection 废水处理厂.第14部分:消毒 |
| 3. | Wastewater treatment plants - control and automation 废水处理厂.控制和自动化 |
| 4. | Wastewater treatment plants - part 4 : primary settlement 废水处理厂.第4部分:初步澄清 |
| 5. | Wastewater treatment plants - lagooning processes 废水处理厂.污泥处理法 |
| 6. | Does the company maintain its own waste - water treatment plant 贵公司是否有自己的废水处理厂 |
| 7. | Wastewater treatment plants - part 6 : activated sludge process 废水处理厂.第6部分:活性污泥处理 |
| 8. | Wastewater treatment plants - part 11 : general data required 废水处理厂.第11部分:需要的一般数据 |
| 9. | Wastewater treatment plants - part 8 : sludge treatment and storage 废水处理厂.第8部分:污泥处理和储存 |
| 10. | Wastewater treatment plants - part 1 : general construction principles 废水处理厂.第1部分:一般建造原则 |