二聚

In the presence of acetic acid and polyethylene glycol, chromic anhydride and acenaphthene react under mild condition and acenaphthene can completely convert into acenaphthenone .

在醋酸、聚乙二醇存在下，铬酸酐和苊在温和的条件下反应，苊可以完全转化为苊酮。

Acenaphthenone was prepared by the oxidation of acenaphthene in the presence of chromic anhydride , acetic acid and polyethylene glycol as a phase transfer catalyst under mild reaction conditions with high yields.

研究了在铬酸酐、冰醋酸和相转移催化剂聚乙二醇存在下苊的氧化反应，较温和的条件可高产率地得到苊酮。

Ingredients:Water、Collagen、Palmitoyl Pentapeptide、Sodium Hyaluronate、Seamollient、Gamma-Polyglutamic Acid、Evening Primrose Oil、Squalene、Algin、Aescufos、Arbutin、Tranexamic Acid、Myoxinol、Eyeseryl、Idebenone、Olive Extract、Vitamin E、Cetyl Alcohol、Glyceryl Monostearate、1-3butylene Glycol、Glycerin、Methyl Paraben、Perfume.

产品成份：去离子水、胶原蛋白、五胜肽、玻尿酸、海藻黏多醣体、纳豆聚麸胺酸、月见草油、海鲛鲨、藻胶、七叶树、熊果素、传明酸、六胜肽、四胜肽、艾地苯橙、橄榄萃取、维他命E、棕榈醇、单硬脂酸甘油酯、丁二醇、丙三醇、羟苯丙酯、香精。

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。

In this paper we present a method we use to train context-independent phone models.On the basis of trained context-independent phone models,the training of allophone models and the output distributions generalizing of allophone models using binary decision trees can be accomplished.

在本文中，给出一种用于训练与发音语境无关音素模型的方法，然后利用这种音素模型完成对异音模型的训练、以及对异音模型的输出分布的二值决策树聚类。

In this study, we carried out the allylation of anilines with allylic acetates in PEG-H2O system in the presence of palladium as catalyst. N-allylation of anilines was achieved.

在本研究中，我们完成利用钯催化剂，在水及聚乙二醇系统中，使苯胺类和乙酸烯丙酯类进行烯丙基化反应，并探讨各苯胺类反应物之结果。

The influence of polyethylene glycol on the aluminum hydroxide product in the process of ion-exchange membrane electrolysis was studied.

研究在铝酸钠溶液离子膜电解制备超细氢氧化铝过程中，添加剂聚乙二醇对产品的影响。

Poly is synthesized by the directly reaction of maleic anhydride and ammonia in water.

以顺丁烯二酸酐和浓氨水为原料采用直接液相聚合的方法合成了聚天冬氨酸。

Two-thirds of the way through the movement, there is the heart-stopping moment where two notes, separated by the length of the piano, hang suspended. Barenboim seemed to hold them for an eternity as if emphasising this metaphor of apartness in life, the apparent impossibility of resolution.

在该乐章的三分之二处，有一个令人屏息的瞬间：两个在键盘上隔了很远的琴键被按下，并悬置在那里，巴伦博伊姆似乎把它们按下了无限久的时间，像是要突出对人生聚少离多、解决难求的隐喻。

However, the apparent frequency factor of curing increases with the increase of the catalyst , being one order of magnitude higher with 0.6 % catalyst than without.

在空气中增高温度时其侧基破坏分为二个阶段，即甲基比苯基先破坏。当引入聚铝苯基硅氧烷作为硅树脂固化催化剂，可提高其甲基的起始分解温度，同时降低苯基的起始分解温度。

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。