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。

youdao

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。

youdao

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。

youdao

But,unlike city sewage, this waste sits in lagoons and is spread untreated on farm fields as fertilizer.

VOA: standard.2010.05.06

Bridges and roads are in disrepair, blackouts are routine, and untreated sewage pollutes drinking water.

WSJ: Review & Outlook: Hugo Ch��vez

When storms hit, these systems can overflow, sending untreated sewage into rivers, lakes, beaches, and drinking water supplies.

FORBES: Smart Communities will Build Green Infrastructure

Unfortunately, these systems frequently overflow, and so untreated sewage and storm water runoff are expelled into surrounding water bodies.

FORBES: Spending Cuts Threaten U.S. Water Infrastructure