查询词典 trimethylene

In this dissertation, two series of rare earth initiators: rare earth tri (2, 6-di-tert-butyl4-methylphenolate) and rare earth calixarene complex have been developed to ring-opening polymerize 2, 2-dimethyltrimethylene carbonate, trimethylene carbonate and ε-caprolactone at mild conditions. Both the polymerization features and mechanisms are discussed in details.

本论文为环碳酸酯、内酯的开环聚合开发了两类新型低毒性稀土催化剂：三(2，6-二叔丁基-4-甲基苯氧基)稀土配合物和对叔丁基杯芳烃稀土配合物，都可以在温和的反应条件下单组分引发2，2-二甲基三亚甲基环碳酸酯、三亚甲基环碳酸酯和ε-己内酯聚合，合成各种分子量的均聚和共聚材料，考察了催化剂结构、聚合条件等对聚合的影响，深入研究了聚合机理。

The best technology of purified lycopene oil resin was, lycopene oil resin:Trimethylene glycol:Potassium hydroxide:Water 3.5:4.5:1.5:1.5,saponification temperature 70℃, saponification time 2h. The content of lycopene is 3.4%, extraction rate is22.48%.

较优的工艺条件为，番茄红素油树脂：丙二醇：氢氧化钾：水的比例为3.5：4.5：1.5：1.5，皂化温度为70℃，皂化时间2小时，所得番茄红素的含量为3.4％。

Some additives that could enhance the enzyme stability were screened through single factor experiments, such as 5 mmolL^(-1) Ca(superscript 2+), 20 mgmL^(-1) trimethylene glycol-single methyl ether, 0.01% 4-formyl phenyl-boron dihydroxide, 1% glycerine.

通过单因素实验得出了对碱性蛋白酶稳定效果较好的几种保护剂：5mmolL^(-1) Ca(上标 2+)；20mgmL^(-1)微胶粒抑制剂丙二醇－单甲醚；0.01%可逆蛋白酶活性抑制剂4－甲酰苯基硼酸；1%甘油。

This embodiment will illustrate that the present invention of the (poly trimethylene terephthalate) PTT laminated film performs better than its PET counterpart in terms of vapor impermeability, flexibility and warpage; its vapor impermeability is about equal to a TPT back sheet, while flexibility and warpage are better than TPT back sheet.

本实施例说明本发明聚对苯二甲酸丙二醇酯薄膜复合成的叠层膜的抗水汽渗透性、挠性和翘曲度优于多层聚对苯二甲酸乙二醇酯薄膜复合形成的叠层膜，抗水汽渗透性与TPT背板基本相当，挠性和翘曲度优于TPT背板。

The effects of technologic parameters, including concen- tration and temperature of ADP solution and galvanizing time on rising time of anodic oxide films are discussed. 2. After dipped in amino trimethylene phosphonic acid solution, anodic oxide films are annealed in pipe stove.

将化成箔在氨基三甲叉膦酸溶液中浸渍，取出烘干后再进行热处理，研究了 ATMP 溶液浓度、浸渍温度和热处理温度对氧化膜升压时间、比容、耐电压的影响，找到其最佳耐水合处理工艺；采用FT-IR对水合作用后的 ATMP 处理氧化膜和未经耐水合处理氧化膜进行了分析。

In the second chapater, first-principles electronic structure calculations were performed to examine the reaction pathway and corresponding activation free energies for alkaline hydrolysis of representative phosphodiesters, including dimethyl phosphate, trimethylene phosphate, ethylene phosphate, and a simplified model of adenosine 3\', 5\'-phosphate.

第二章中主要应用量子化学从头计算方法研究了四种磷酸二酯—二甲基磷酸酯，乙撑磷酸酯，TMP阴离子及cAMP的模型化合物的碱性水解反应途径，并估算了各个反应的能垒和自由能能垒。

The different enzyme protecting agent had effected on the liquid alkaline protease under the dissimilar condition. Taking the living rate of enzyme as the target, we obtained one high effective alkaline protease stabilizing agent formula through orthogonal experiments as following: 5 mmolL^(-1) Ca(superscript 2+), 15mgmL^(-1) trimethylene glycol-single methyl ether, 0.015% 4-formyl phenyl-boron dihydroxide, 1% glycerine.

在此基础上，进行L13(3^7)正交实验，以相对酶活率为指标，考察了不同酶活性保护剂在不同条件下对液体碱性蛋白酶活力的影响，筛选到一种优质高效的碱性蛋白酶稳定剂配方为：5mmolL^(-1) Ca(上标 2+)，15mgmL^(-1)丙二醇－单甲醚，0.015% 4-甲酰苯基硼酸，1%甘油。

The invention makes clay brick powders as main materials, and is compounded from such chemical industry materials as acrylic acid emulsion, sodium hexametaphosphate, sodium benzoate, glycol, trimethylene glycol, polydimethyl siloxanes, methylcellulose and titanium oxide powder as per certain proportion.

本发明以粘土砖粉为主要原料，和丙烯酸乳液、六偏磷酸钠、苯甲酸钠、乙二醇、丙二醇、聚二甲基硅氧烷、甲基纤维素、钛白粉等化工原料按一定配比组合而成。

The cylindrical palatal implant was made of Hydroxyapatite and Poly(lactide-co-trimethylene carbonate), adding barium sulphate(BaSO4),to be implanted in vivo.

在自行研制的羟基磷灰石-聚乳酸-三亚甲基碳酸酯软腭植入材料中掺入适量硫酸钡(BaSO4)，并将其植入到实验动物体内，定期行X线摄片。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失