Introduced hereby is the mechanism of the biological deodorization, natural vegetable liquid deodorization and ion clarification widely applied in municipal drainage works.
介绍了在市政排水工程中普遍使用的生物除臭技术、天然植物提取液除臭技术和离子净化技术的原理。
The paper considers that the drainage works and the impervious element are the effective measures for reducing external water pressure on the lining and maintaining groundwater balance.
文章认为，设置排水设施和地层防渗加固是减小衬砌外水压力及维持地下水系平衡的有效措施。
Some anti floating methods for large drainage structure are discussed in the article and economic analysis is made in respect of specific works.
本文对大型排水构筑物的几种抗浮方法进行了论述，并针对具体工程作了经济分析。
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