查询词典 purification

This article presented river mouth ecotechnology for purification of River Taoxi in Lake Erhai Basin.

本文介绍了云南洱海污染治理的工程技术之一——桃溪河口净化工程的设计思路。

According to the idea,further study is done on the practical application of refrigeration in the lampblack purification .

依据这个思想，对制冷装置在油烟净化中的实际应用作了初步研究

Object To explore the method for high quality DNA extract from plant Chinese medicinal materials containing developed xylem Methods The process of DNA includes wash with Tris buffer, extract with CYAB buffer and purification mainly Results Using this method, the total DNA was isolated from Cimicifugae foelida L., Arlia chinensis L., Paeoniae lactiflora Pall.,Aucklandia lappa Decne.,Lindera aggregata Kostern., and Akebia quinata Decne.

目的 为获得高质量的DNA，研究木质部较发达的根，根茎类以及茎木类药材的DNA提取方法。方法总DNA的提取过程包括用Tris缓冲液洗净，CTAB抽提和纯化。

First of all, this study will be multi-walled carbon nanotubes by chemical oxidation process purified so it can be modified to deal with than the purification of purity before the modified 5 wt%, more than 1.89 times the surface area to increase the surface potential decrease of about 10 ~ 20 mV and the surface functional base (-COOH and-OH) to increase 1.45 times, and then the control technology of electroless preparation parameters include: analysis of plating time, plating analysis of temperature, metal ions in solution than the (Fe2+/ Ni2+), bath pH and the added value of dispersion Agent and other research towards Fe-Ni particles to increase the iron content and Fe-Ni particles spread in the MWCNT upper fixed targets,the results found that when the parameters for the preparation of 50 ℃, pH10, do not add dispersant, metal ions than the solution (Fe2 +/ Ni2 +) 7, the highest iron content can be Fe = 40.55 at%(flat iron content 111.17 mg / g) of nanocomposites Fe-Ni/CNT, then for a series of the nature of its analysis, the final evaluation Fe-Ni/CNT nanocomposites were processed on the effectiveness of the application of mixed pollutants, the results showed that in 120 minutes at the same time when Adsorption of heavy metal ions lead nitrate 10 ppm, selenium heavy metal ion degradation of 1 ppm and orange azo dye AO7 50 ppm standard of effluents, and after a total Fe-Ni nano-particles to SEM / EDS analysis of more than 50% still remaining.

本研究首先将多壁奈米碳管以化学氧化法做纯化改质处理能使其纯度较纯化改质前提高5 wt％、比表面积提高1.89倍、表面电位下降约10~20 mV以及表面官能基提高1.45倍，再控制无电镀技术之制备参数包括：析镀时间、析镀温度，镀液中金属离子比(Fe2+/Ni2+)、镀液pH值及是否添加分散剂等，研究朝提高Fe-Ni粒子的含铁量与Fe-Ni粒子散布固定在MWCNT上等目标进行，研究结果发现当制备参数为50 ℃、pH10、不添加分散剂、镀液金属离子比(Fe2+/Ni2+)7时，可得到最高铁含量Fe = 40.55 at％(单位铁含量111.17 mg/g)之奈米复合材料Fe-Ni/CNT，接著对其作一系列性质分析，最后评估奈米复合材料Fe-Ni/CNT对共处理混合污染物之应用效益，结果显示其在120分钟时能够同时吸附重金属硝酸铅离子10 ppm、重金属硒酸根离子1 ppm及降解偶氮橘色染料AO7 50 ppm达放流水标准，且共处理后奈米Fe-Ni粒子以SEM/EDS分析仍剩余50 %以上。

Weihai Qinghua Ziguang 2008 to uphold the "Tsinghua Science, love life," leading technology, quality first ideal for enterprises, aimed at developing the cause of human health and create a harmonious new human life, the company in the world's most suitable for human habitation Beautiful city of Weihai has 100 mu of the Qinghua Ziguang Science Park, 15,000 square meters of 300,000 purification soft capsules, hard capsules, tablets, granules four varieties currently the most advanced production workshop.

八年来威海清华紫光秉承以"清华科技，关爱人生"，科技领先、品质第一为企业理想，旨在发展人类健康事业，创造人类美好和谐新生活，公司在世界最适宜人类居住的美丽城市威海拥有100多亩地的清华紫光科技园，15000平方米的30万级净化软胶囊、硬胶囊、片剂、颗粒剂四个品种目前最先进的生产车间。

They have customs of Passover, purification, levirate marriage, etc.

他们已经习惯的逾越节，纯化，娶寡嫂制等，古代以色列人。

Extraction,purification and determination methods of glycyrrhizic acid in Licorice are surveyed in this paper.

中文摘要：综述了甘草中有效成分甘草酸的提取、纯化和测定方法的研究概况。

Solar light pipe combined with photocatalysis could introduce sunlight into rooms and also has air purification function.

太阳能光催化-导光管将太阳光导入的同时兼具光催化空气净化功能。

Objective To study the purification process of total flavonoids in Lignum Dalbergiae odoriferae with macroporous resin.

目的 考察大孔吸附树脂分离纯化降香总黄酮的工艺条件及参数。

Methods 9 kinds of macroporous resins with different polarities were used in the purification of the total flavonoids in Lignum Dalbergia odorifera.

选择9种不同极性的大孔吸附树脂，以降香总黄酮为指标，通过静态吸附和解吸附试验优选树脂，动态试验考察其纯化降香总黄酮的最佳工艺条件。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。