nonpoint source是什么意思 nonpoint source怎么读
nonpoint source的用法和样例
- 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。
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