查询词典 polymeric

Using aluminium sulfate, aluminium polychloride, polymeric iron and PAM to treat the waste water of Beishiqiao waster water treatment plant, and also study the feeding order.

对西安市北石桥污水净化中心的污水（COD 300 mg/L左右，BOD 150 mg/L左右）用硫酸铝、聚合氯化铝、聚合铁及聚丙烯酰胺进行单剂及组合处理，并对组合处理的投加顺序作了研究。

The interfacial bonding between a series of bonding agents including polyhydroxy alcohols bonding agents (LBA-22,LBA-201,hyantoin/triazines composite bonding agents,neutral polymeric bonding agents and substituted amides and RDX were studied. Meanwhile,all of the bonding agents were used to prepare RDX-CMDB propellants.

研究了多羟基醇类(LBA-22、LBA-201)、海因/三嗪类、中性聚合物类和取代酰胺类键合剂与RDX的表界面作用，并在RDX-CMDB推进剂中考察了这些键合剂的作用效果。

Extracellular polymeric substances in activated sludge were extracted by magnetic stir and H-type cation resin exchange, and the content of protein, polyose and nucleic acid were the evaluating indexes.

采用磁力搅拌—阳离子交换树脂法提取了活性污泥中的胞外聚合物。

At the same time, the resorbable polymeric materials used to prevent postsurgical adhesions were also reviewed in detail.

同时介绍了用于预防术后粘连的各种可吸收高分子材料。

Preparation of polymeric nanocapsules by radiation induced miniemulsion polymerization (1) Polystyrene nanocapsules with liquid core were prepared by ~(60)Coγ-ray radiation induced miniemulsion polymerization, in which N-vinyl pyrrolidone was used as polar monomer.

本文首先通过辐射引发细乳液聚合制备了聚苯乙烯纳米微胶囊，并从热力学与动力学两方面研究了影响纳米微胶囊形貌的因素；之后使用反相乳液聚合制备了磁性复合微球和磁性复合空心微球，并研究了有关影响因素。

The results show that the aromatic structures of two six-member-ring are changed to quinonoid structure, along with the increase of polymeric chain.

在第六章中，我们通过理论计算研究了四种经典芳香环的并聚物的电子结构。

A brief introduction to domestic research of negative refracting materials is given, and two possible routes to negative refracting via functional polymeric materials are suggested.

本文还简要介绍了国内负折射材料的研究现状，提出了利用高分子功能材料实现负折射的两种可能的途径。

Compared with other flocculants, the polymeric ferric sulfate has much better performance and characteristics, such as better adsorption, bridge erection, flocculation, floc formate fast, not easy to breaking, better repolymerization and weak corrosion. So it was widely used in the wastewater purification and treatment which contains industrial wastewater, urban sewage, water for industrial use and potable water etc.

与其它的絮凝剂相比较，聚合硫酸铁不但具有较强的吸附、架桥、絮凝沉淀性能，而且在水处理过程中有生成絮体速度快、絮体不易破碎、重聚性能好、腐蚀性小等特点，因此广泛用于工业废水、城市污水、工业用水以及生活饮用水等的净化处理。

TPA-PPV (M_W of 3000-4000 g/mol) is a good kind of polymeric light-emitting diodes material and has a high photoluminescent quantum yield, we prepared a series of TPA-PPV nanoparticles with diameters ranging from 20 to 100 nm by reprecipitation method.

结果如下： 1、以一种低分子量聚合物绿色电致发光材料TPA-PPV为目标分子，平均分子量为3000—4000，具有很高的荧光量子产率。

Along with the vigorous development of science and technology and the requirement of daily lives, the flame retardance of polymeric products is increasingly paid close attention to.

随着科学技术的发展和日常生活的需要，人们对阻燃的要求日益关注。

I urge any American living outside the country to get an early start checking his/her registration and receiving an absentee ballot, because it can take a while.

我奉劝身在国外的所有美国人早点着手核对登记表，并接收缺席选举人票，因为这得花点时间。

He is too young to join the army.

他太年轻了，还不能参军。