non-point pollution sources是什么意思 non-point pollution sources怎么读
non-point pollution sources的相关资料
non-point pollution sources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。 - The distribution of non-point sources of pollution from different effluents had distinct spatial characteristics.
各流域非点源污染的发生具有明显的地域分异特征。
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