查询词典 e

The curing procedure of bisphenol A cyanate ester resin modified by copolymerization with epoxy E-51 and alicyclic epoxy resin R-122 was studied by differential scanning calorimetry.

采用示差扫描量热法对缩水甘油醚类环氧树脂(E-51)与脂环族环氧树脂(R-122)共同改性的双酚A型氰酸酯树脂的固化反应历程进行了研究。

The invention relates to a method for making oligomeric isocyanates by reacting diisocyanates in the presence of a catalyst, wherein the catalyst comprises a saline compound prepared from an anion selected from 1,2,3- or 1,2,4-triazole, a substituted species of 1,2,3- or 1,2,4-triazole and carbocyclically and/or heterocyclically annellated species of 1,2,3- or 1,2,4-triazole and the cation selected from an alkali metal, alkaline-earth metal and/or monovalent ammonium cation and/or phosphonium cation of formula (5), wherein the E, R1, R2, R3, R4 are as defined in the descriotion.

本发明涉及一种制备低聚异氰酸酯的方法，包括二异氰酸酯在催化剂的存在下进行反应，其中所述催化剂由盐化合物组成，该盐化合物由选自1，2，3-或1，2，4-三唑、1，2，3-或1，2，4-三唑的取代系列者、1，2，4-三唑的碳环稠合系列者、1，2，3-或1，2，4-三唑的杂环稠合系列者的化合物及其混合物的阴离子和选自碱金属、碱土金属和/或通式(5)的一价铵阳离子和/或磷友衾胱拥难衾胱又票福其中E、R 1 、R 2 、R 3 和R 4 如说明书中所定义。

What is the first step in the reaction of E+ with PhH Compare it with the first step in the addition to an alkene.

答： E+与 PhH的第一步反应是什么试与烯的加成反应比较。

Vitamin E, Pearl, Aloe, Mint, Allantoin, Natural Compound Fresh And Cool

维他命E，珍珠，芦荟，薄荷，尿囊素，天然复合清凉剂

Vitamin E helps shield skin from environmental assaults while moisturizing Allantoin stimulates healthy tissue formation.

维他命 E 有助于保护肌肤免受环境伤害，保湿尿囊素可以刺激健康组织的形成。

No.36 in e major,op.67,no.6,lullaby,allegretto non troppo

36号E大调，作品67号之6，《摇篮曲》，不过分的小快板

Abstract］ Objective: To explore the significance of allergen and serum total immunoglobulin E test in anaphylactic purpura.

摘要］ 目的：探讨过敏原与血免疫球蛋白E浓度在过敏性紫癜中的临床意义。

XYZ/E is a temporal logic system as well as a programming language.It can represent almost every kind of significant features in conventional imperative languages.

XYZ/E既是一个时序逻辑系统也是一个程序设计语言，它能表示普通高级语言中几乎所有的重要机制。

Amazons Kindle, by comparison, does best in direct light, since its E Ink screen is reflective, like a piece of paper.

与之相比，亚马逊Kindle在光线直射的情况下表现最佳，因为它的E Ink屏幕是反光的，就象是一张纸一样。

They say they did this by stopping interaction between amyloid and a protein known as apo E.

他们说他们通过apo E停止amyloid和蛋白质之间的相互作用。

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％。