查询词典 purification

The Witter water purification science and technology Limited company has the abundant strength, Gao Xin the technology, the craft adept technical personnel as well as the specialized service troop, for this company "high quality at low price, honest code of honor" the management idea has laid the solid foundation.

威特净水科技有限公司拥有雄厚的实力，高新的技术，工艺娴熟的技术人员以及专业的维修队伍，为本公司"质优价廉，诚实守信"的经营理念奠定了扎实的基础。

The present invention belongs to the technical field of biological pharmacy, and in particular relates to a preparation and purification method of tetra-hydroxyl xanthone mango aglycone, and an application thereof in hypoglycemic medicine.

本发明属于生物制药技术领域，具体涉及一种四羟基口山酮芒果苷元的制备、纯化以及其在降血糖药物中的应用。

Xebec Purification Co., Ltd.

瑞必科净化设备有限公司是由Xebec Adsorption Inc。

Shandong Shengli Bioengineering Co., Ltd., Jining 272037, Shandong, China Abstract: The cause of infection in the process of avermectin production was studied from infected time, scope and bacterial type. The test method to check the infection caused by other bacteria was also raised. The ways to prevent infection was ascertained from preparation of microbial strain, air purification, medium disinfection, ductwork deployment and systematic dead angle cleaning. Meanwhile, adjustment measure was summarized in different infected period such as microbial strain, seed pot and yeastiness.

山东胜利生物工程有限公司，山东济宁 272073 摘要：从染菌的时间、类型、范围三方面探讨了阿维菌素发酵染菌的原因，提出了发酵过程中杂菌的检查方法，分别从菌种制备、空气净化、培养基灭菌、管路配置、系统死角清理等方面明确了防止发酵染菌的措施，得出了斜面菌种、种子罐、发酵罐不同时期染菌后的补救措施。

The original meaning of the word zakat is both ' purification ' and 'growth.

施天课这个字的原意是"净化"和"成长"。

Purification is mainly done by adding zinc dust to the solution. As all the elements to be removed lie below zinc in the electrochemical series they can be precipitated by cementation.

净化过程主要是加入锌粉到溶液，这样所有电位序在锌之后的元素都被置换出来并且凝固沉淀下来。

It is an important consideration in purification circuits that removal cadmium completely prior to cobalt cementation, because cadmium can inhibit basic zinc sulphate to adsorb on the surface of zinc dust.

镉可以起到阻止碱式硫酸锌或氢氧化锌吸附在锌粉表面的作用。欲加速钴的置换和提高置换效率，必须形成锌-钴合金或锌-镉合金。

This paper studies the Winching zircon ore purification and the determination of trace elements .

摘要本文研究了文昌矿中硅酸锆的提纯及其微量元素的测定。

Separation, Purification and Content Test of Polysaccharide in Zymotic Fluid of Cordycepts Mycelium

随着它的药用价值不断增大和药用范畴的不断扩大，对虫草的需求量也在不断的增加。

The exact of petroleum ether was the acaricidal active site of Eungenia caryophyllata. 3.Isolation, purification and identification of compounds with acaricidal activity in Eugenia Caryphyllata: The exact of petroleum ether was separated into 6 parts by silica gel column chromatography with gradually increasing polarity of petroleum ether: ethyl acetate. The part C was demonstrated to be the most effective part by acaricidal activity test in vitro,and the time for it to kill all experimental mites was about 20 min.

丁香杀螨活性成分的追踪分离、纯化与结构鉴定：采用硅胶柱层析法，以石油醚：乙酸乙酯溶剂系统梯度洗脱，对丁香石油醚提取物进行分离，得到A~F 等6 段混合物，离体杀螨试验发现，C 段混合物具有突出的杀螨活性，50%浓度平均15min可杀死全部供试螨虫。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。