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- This paper studied the purification efficiency of wastewater in the static experiment by Oenanthe javanica. 通过静态实验研究了水芹菜对污水的净化能力。
- If coking waste-water is treated by this cell, the purification efficiency of COD and that of oil are 56.5% and 99.8%, respectively. 当预处理焦化废水时，焦化废水COD的净化效率可达56.;5%25，除油率可达99
- The dosage of noble metals in TWC of CNG vehicle was greatly decreased, and higher purification efficiency for the exhaust was obtained. 天然气汽车三效催化器中贵金属用量大大降低，保持了较高的废气净化效率。
- The study of purification efficiency of polluted water remediation by submerged Macrophytes,including Ceratophyllum Demersum L. 对金鱼藻、苦草和伊乐藻三类沉水植物净化受污水体的效果进行了试验研究。
- The result shows that the purification efficiency is higher under counter current operation than that under co-current operation. 结果表明:逆流操作的净化效率高于顺流,气(液)体流量对出、进口气(液)体温差有较大影响。
- Through experiments of static degradation and dynamic soil column, both purification efficiency of phenol and influences of reed wetland soil were studied. 摘要用动态土柱法和静态降解法研究了芦苇湿地土壤对苯酚的净化效果及其影响因素。
- It is characterized by advanced technology and compact structure as well as high purification efficiency and resistance to etch with less trouble and low energy consume. 该设备具有技术先进,结构紧凑,污染物去除率高,故障少,耐腐蚀,能耗低等特点。
- Objective To sieve the best purification method of Herba Leonuri's acidic alcohol-extract by comparing the purification efficiency of different methods. 目的通过对不同精制方法的比较,筛选出益母草酸醇提取液的最佳精制方法。
- The results have shown that the concentration of styrene has little effect on styrene purification efficiency, the temperature plays a substantial role on catalytic combustion... 结果表明，苯乙烯浓度对废气净化效率影响不大，温度对苯乙烯催化燃烧起着决定性的作用，随着空速的增加，苯乙烯的净化效率下降。
- The results showed that the purification efficiency of wetland be increased by growing plant, and were higher in substrate mixed by sand and soil than substrate made of scree. 结果表明，种植植物的湿地系统比没有植物的湿地系统净化效率高，沙土混合基质比卵石基质净化效率高；
- The use of Fe 2+ as a catalyst not only could reach the stable purification efficiency above 99% of H 2S but also had a higher capacity of sulfur. So it was very advantageous for purification of H 2S in low concentration. 用Fe2 + 作催化剂 ,溶液的净化效率可达 99%25以上 ,且硫容量也较大 ,对低浓度H2 S的净化相当有利。
- This paper reports the study of effects of treatment of lonium moltiflorum lam seeds with polyvinyl alcohol (PVA) on their germination,growth,purification efficiency and cold resistance. 本文研究了聚乙烯醇（PVA）预处理对多花黑麦草种子的萌发、幼苗的生长、净化污水效率和抗寒性的影响。
- The operational results during about 1-year period demonstrate that the system can achieve high purification efficiency for black and odorous river and convert sewage to useful resources. 近一年来的运行结果表明,该系统对黑臭河流的净化效果好,同时还可实现污水的资源化,适合于城市景观河道的治理。
- Small size substrate and mixture of plants are able to stable the purification efficiencies of wetlands. 小粒径基质和混合种植湿地系统能够保持较稳定的净化效率。
- wastewater purification efficiency 污水净化效率
- We must improve our efficiency as soon as possible. 我们必须尽快地提高工作效率。
- Their labor efficiency is very high. 他们的工作效率很高。
- We were most impressed with/by your efficiency. 你的工作效率很高，我们极为钦佩。
- Reading a good book may bring purification to souls. 读一本好书可以带来心灵的净化。
- Our goal is to achieve the maximum of efficiency. 我们的目标是取得最高的效率。
