And till now, there is not any waterborne polyurethane with perfect performances.

...polyurethane varnish.

聚氨酯清漆

EHC Global polyurethane rollers offer greater resiliency and wear resistance than plastic or rubber rollers.

依合斯提供的聚氨酯滚轮比起塑料和橡胶滚轮更具弹性和耐磨性.

The acid number of polyester imides polyol is a critical value for qualified polyurethane.

聚酯亚胺多元醇酸值是聚氨酯的一个重要指标.

Harry liked to talk much and his father did not allow him to speak at mealtimes.

哈利经常喋喋不休,可是他爸爸不允许他在吃饭时讲话.

Improve polydipsia , polyphagia , polyuria, caused by diabetes.

可改善因糖尿病等引起的多饮、多食 、 多尿等症.

The only time I see the boys is at mealtimes.

我只能在吃饭的时候看到这些男孩子.

At Mike and Debbie Wyche's place, preparations for mealtimes involve more than setting the table.

在麦克和黛比威奇的住处, 开饭之前的准备工作可不只是摆餐具.

At mealtimes he would watch her eat.

用餐时，他会看着她吃饭。

It was theoretically predicted that polyvalent anions of C 36 CH 2 had high stability and aromaticity.

从理论上预计C36CH2的高价阴离子具有很高的芳香性和稳定性.

Influenza may be prevented by active immunization with a polyvalent killed or subunit vaccine.

可以通过主动免疫接种多价灭活疫苗或亚单位疫苗预防流感.

Polyvinyl acetate emulsion was synthesized by semi-continuous emulsion polymerization method.

采用半连续乳液聚合的方法合成聚醋酸乙烯乳液.

Polyvinyl alcohol is an addition polymer formed from hydroxyethene or vinyl alcohol.

聚乙烯醇是由乙烯醇加成聚合后形成的.

Polyvinyl Chloride . Synthetic resin used in both liquid and thermoplastic powder systems.

聚氯乙烯,用于液体或粉末涂料的一种合成树脂.

The paper studied the preparation of modified urea-formaldehyde resin adhesive with polyvinyl alcohol ( PVA ) and melamine.

研究了聚乙烯 醇和 三聚氰胺改性脲醛树脂胶粘剂的制备工艺和配方.

Polyvinyl chloride ( PVC ) is a heat-sensitive polymer resin, with degradation during molding.

聚氯乙烯 树脂是一种热敏性树脂, 在加工过程中容易受热分解.

Polyvinyl chloride-polyethylene polyamine resin is a new polymer phase transfer catalyst.

它是一种新型的高分子相转移催化剂.

The results show that sulfonated-polyvinyl chloride has good catalytic activity and reusability.

结果表明,此催化剂有良好催化活性和使用性.

Ths paper reviews the property, some methods about synthesis and use of polyvinyl pyrrolidone.

综述了聚乙烯吡咯烷酮的性质, 合成方法及其应用.

The polyvinylidene fluoride ( PVDF ) resin shows very low critical surface tension, and unique dispersibility.

聚偏氟乙烯 ( PVDF ) 树脂的临界表面张力很低, 其分散性有独特性.

The coated polyvinylidene chloride ( PVDC ) can improve the properties of paper packing.

用 PVDC 涂布纸质包装材料,可以显著提高纸质包装材料的性质.