1. control of pollution sources 
   污染源控制
2. survey of pollution sources 
   污染源调查
3. pollution source of water body 
   水体污染源
4. management of water body pollution sources 
   水体污染源管理
5. The net effect was to reduce water consumption to only 5 cubic metres per ton of sugar, a reduction of over 93 per cent. Further, the pollution entering the water was cut by 20 per cent. 
   净效益是将生产每吨糖所耗的水减至仅为5立方米，减少93％以上，另将水污染源减少20％。

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• 1. water pollution source
  水污染 water pollution...水污染源 water pollution source...有机废水 organic waste water
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