treatment of ammonia nitrogen是什么意思 treatment of ammonia nitrogen怎么读
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treatment of ammonia nitrogen的用法和样例
- Topdressing nitrogen treatment had no obvious effect to total nitrogen in soil, but it had a stronger effect to alkalined-nitrogen.
追氮处理对土壤全氮没有明显的影响，但对土壤大麦碱解氮的影响比较大。 - In order to ease up overnutrition of water bodies, open up an economical and effectual technology of nitrogen removal is important to us.
为了缓解日益严重的水体富营养化问题，开发一种经济有效的污水脱氮处理技术已成为水污染控制工程领域的重点与热点。
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