乙烯的

Acrylic resin containing N,N-dimethyl amino group and vinyl group applicable for UV-curable and cathodic electrophoretic paint was synthesized via radical polymerization of acrylic monomers followed by modification with methacrylic oxyethyl isocyanate.

通过自由基共聚合得到丙烯酸树脂，然后用甲基丙烯酸异氰酸乙酯对其改性，合成了既带有N，N-二甲胺基，又带有乙烯基的紫外光固化阴极电泳漆基体树脂。

A series of rosin pentaerythritol ester polyoxylethylene ether with different polymerization degree of epoxy ethane were synthesized.

合成了不同聚合度的松香季戊四醇酯聚氧乙烯醚。

Using N,N,N',N'-tetramethylethylenediamine and potassium persulphate as a redox initiation system, high molecular weight poly was synthesized by aqueous deposited polymerization.

以N，N，N'，N'-四甲基乙二胺－过硫酸钾为氧化－还原引发体系，用水相沉淀聚合法合成了超高相对分子质量的聚醋酸乙烯。

Effects of the mass ratio of organic phosphonic acid to zinc biphosphate, compound system amount, corrosion time and temperature, and pH value on the anticorrosive efficiency were investigated.

以四乙烯五胺、甲醛和亚磷酸为原料合成了有机膦酸类缓蚀剂，与磷酸二氢锌复配，考察了有机膦酸类缓蚀剂与磷酸二氢锌质量比、复配体系加量、腐蚀时间、腐蚀温度及体系pH值对复配体系缓蚀效果的影响。

Ethylene-bis-heterocyclic compounds is much international attention in recent years a new type of photochromic material.

二芳杂环基乙烯类化合物是近年来国际上备受重视的一类新型光致变色物质。

The results show that the thermal stability and machine intensity were improved compared to Polyvinylidene Fluoride membrane...

结果表明，与聚偏氟乙烯膜相比，改性膜的热稳定性和机械强度均有所提高。

PVDF T-1 is a powder form of polyvinylidene fluoride, which can be

PVDF T-1 是一种粉末状的聚偏氟乙烯产品，可以与丙烯酸树脂、添加剂等

Structure and property of polyvinylidene fluoride/polymethylmethacrylate composite membranes from melt-extrusion were investigated.

探讨了聚偏氟乙烯/聚甲基丙烯酸甲酯共混挤出流延膜的结构和性能。

The gravitational thermal analysis,machine intensity analysis and contact angle determination were employed to characterize the performance of Polyvinylidene Fluoride membrane after hydrophilic modification.

用热重分析、机械强度分析和接触角测定对亲水改性后的聚偏氟乙烯膜进行了表面性能表征。

Polyvinylidene fluoride was used to prepare solvent base fluorocarbon coating, and the solvent constitution of PVDF coating was screened and optimized.

摘要用聚偏氟乙烯树脂制备了溶剂型氟破涂料，筛选并优化了PVDF涂料的溶剂组成。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。