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1·Irrigation: No untreated sewage water may be used for irrigation.

灌溉：任何没有经过处理的污水沟都不能用于灌溉。

2·The characteristics of urban untreated sewage source and urban untreated sewage source heat pump are analyzed and studied.

分析探讨了城市原生污水源的特点及其热泵系统的优缺点。

3·Nano anti -fouling coating is one of efficient measures for solving pipe fouling problem in the urban untreated sewage cooling and heating source system.

采用新型纳米抗垢涂料是解决城市原生污水冷热源系统污垢的有效措施之一。

4·The Liujiang River, which is the main source of drinking and industrial water use of the city, suffered from pollution from untreated sewage and rainwater flows.

作为柳州市工业和居民生活用水主要水源的柳江则受到部分未经处理的污水和雨水排放污染。

5·Untreated sewage from factory discharges and urban centres now accounts for 10% of the Yellow River's flow, the China Daily reported a Chinese environmental group as saying.

《中国日报》报道，中国一个环境组织指出，未经处理的工厂和城市生活污水已占到黄河总水量的10%。

6·According to the characteristics of technology and economy of city untreated sewage source heat pump system, the mathematical models of annual cost object function are established.

根据现有城市原生污水源热泵的技术经济特点，以系统的费用年值为目标函数，建立了系统综合优化的数学模型。

7·Irrigation: No untreated sewage water may be used for irrigation. Irrigation methods should take into consideration sustainability of the water sources and the quality of the water.

灌溉：任何没有经过处理的污水沟都不能用于灌溉。使用的灌溉方法要考虑到水资源的可持续性和水的质量。

8·Ramesh says India has undertaken a 10-year program to ensure no untreated industrial effluent or urban sewage is released into the country's main river, the Ganges.

环境部长拉梅什说，印度正展开一个10年的项目，用来保证未经处理的工业废水和城市污水不能流入印度主要河流恒河。

9·Fouling is main reason for affecting the thermodynamic performance of untreated urban sewage heat exchanger.

结垢是影响城市原生污水换热器热工性能的主要原因。

10·Datong City's sewage water is mostly untreated or is not up to the standard after treating, and then directly drains into river for irrigation, the agriculture eco-environment is seriously affected.

大同市污水大都未经处理或处理不达标，直接排入河道用于灌溉农田，对农业生态环境造成严重的影响。