extended source
英
美
- extended adj.长期的;广大的;伸展的动词extend的过去式及过去分词形式.
- source n.来源;发源地;原始资料v.从...获得
- Soil erosion and non-point source pollution are two serious environmental issues.
土壤侵蚀与非点源污染是两大重要的环境问题。
- According to the investigation, the main causes of agricultural nonpoint source pollution have been analysed.
土壤侵蚀引起的农业非点源污染是造成水体污染的主要污染源。