通过接触过滤技术在冶金化工污水处理工艺中的应用，对处理后浓密废水所含悬浮物进行深度过滤，使处理后排放废水中的总锌、总镉浓度分别降到1。
By depth filtration of suspended material in effluent after treatment using contact filtration process, the total Zn and Cd concentration in the effluent discharge can be dropped to 1.
通过从理论上对水箱温度过高原因的分析，对冷却系统的结构布置提出了几种改进方案，并进行了热平衡试验，所选定的方案使冷却系统的各部件得到合理匹配，提高了冷却效果。
Through a theoretical analysis on the causes of excessive radiator temperature, structural arrangement of the cooling system is improved so that every parts in the system can be rationally matched.
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