防止水污染 meaning in English

water conservation
waterco ervation

In order to make rivers and lakes clean and prevent water from being polluted , we must do something to stop all sorts of pollution
为了保持河流湖泊清洁，防止水污染，我们必须采取措施，阻止各种污染。
Only on the condition that we ascertain reserve of groundwater , mark out and regulate unitedly , prevent water pollution , call for saving water , suggest uni - calling between surface water and groundwater positively , can we exploit and use groundwater rationally
研究表明，只有查明地下水储量，对地下水实行统一规划，统一管理，防止水污染，提倡节约用水，积极推行地表水和地下水联合调度，才能合理开发利用地下水资源。