甲基剂

Use D4 or DMC, Divinyl tetramethyl disiloxane, Tetravinyl tetramethyl cyelo tetrasiloxane were used as raw materials and Tetramethyl ammonium hydroxide as catalyst to synthesize a high molecular weight of vinyl silicone oil. Concentrate hydrosilicone oil, tetramethyl dihydro disiloxane, hexamethyldisiloxane and D4 were used to synthesize the cross linker of low-hydro silicone oil required in experiments.

以D4或DMC，乙烯基双封头，乙烯基环体等为原料，四甲基氢氧化铵为催化剂合成了不同摩尔质量的乙烯基硅油；以高含氢硅油，含氢双封头，六甲基二硅氧烷，D4合成实验所需的交联剂低含氢硅油。

The optimal conditions were obtained that isopropanol concentration 95% mass ratio of sodium hydroxide to soybean dietary fiber and monochloracetic acid 1.00:1.25:1.20, alkalization time 60 minutes, etherification temperature 70 degrees C, and etherification time 120~150 minutes.

以大豆膳食纤维为原料，一氯乙酸为醚化剂，异丙醇为溶剂，制备了羧甲基大豆膳食纤维，研究了异丙醇溶液质量分数、NaOH用量、MCA用量、碱化时间、醚化温度、醚化时间对产品羧甲基质量分数的影响。

Styrene-dimethylsiloxane block copolymers with types of andn were, synthesized under the existence of catalyst, lithium naphthalene, and couplins asent, stannous octoate or olisomer of dichlorodimethysiloxane.

本文用萘锂作为催化剂，辛酸亚锡或二氯二甲基硅氧烷的低聚物为扩链剂，设计和合成了分子量为6～13万苯乙烯与二甲基硅氧烷的結构单元数之比为1.0～9.1的嵌段共聚物和_n。

To obtain a flocculant which could effectively remove dyes from dyeing wastewater , the amphoteric polymer was prepared by copolymerization of acrylamide, acrylic acid, cationic monomer and dmethyldiallylammonium chloride or acryloyl oxyethyl trimethyl ammonium chloride.

为制备一种对染色废水有显著脱色效果的絮凝剂，采用溶液聚合法，将两种阳离子单体二甲基二烯丙基氯化铵和丙烯酰氧乙基三甲基氯化铵分别与丙烯酰胺，丙烯酸共聚，合成了两性聚合物。

Methyl 6-acylnaphthalene from 2-methylnaphthalene was synthesized via acylation using acetic anhydride and propionyl chloride as the acylating agents with catalyst aluminum trichloride in homogeneous liquid phase system.

为制备重要的化合物2-甲基6-酰基萘，提高酰化产物的收率和纯度，以2-甲基萘为原料，分别研究了乙酸酐和丙酰氯为酰化剂时的酰化反应，对酰化反应的产物进行了GC、FT-IR和GC-MS表征；对酰化反应的影响因素进行了研究。

On the basis of these principles and requirements,in this paper,a new modifier has been synthesized from pyromellitic dianhydride and thiosemicarbazide by the nucleophilic addition of anhydride,the cyclization of acyl thiosemicarbazide in alkaline solution,and the N-hydroxymethylation of the triazole-thione.

本文根据这一思路，以均苯四甲酸二酐和氨基硫脲为起始原料，通过酸酐的亲核加成反应、酰氨基硫脲的碱性环化反应、三唑硫酮环的N-羟甲基化反应合成出了一种新的N-羟甲基三唑硫酮酸改性剂。

Safener increased the ALS activity and it also increased the GST activity of the two cultivars, which may enhance the metabolism of the herbicide, thus increased the tolerance to mesosulfuron.

本研究认为不同小麦对甲基二磺隆的敏感性不同，其敏感性可能与靶标酶ALS有关，安全剂提高了小麦ALS活力，也提高了GST的活力，增强了除草剂的代谢，从而增加了小麦对甲基二磺隆的耐药性。

The encapsulated TiO〓 particles by polymer were obtained with soapless emulsion polymerization of methyl methacrylate in water in the presence of the pretreated TiO〓 particles.

一种是用偶联剂钛酸丁酯对亲水性TiO〓粒子进行预处理，钛酸丁酯与TiO〓表面羟基反应，交联到TiO〓粒子表面，使TiO〓粒子表面由亲水性转变为憎水性，改善无机粉体与有机单体的亲合性，再进行TiO〓存在下甲基丙烯酸甲酯的无皂乳液聚合，即可得到TiO〓-PMMA复合粒子：另一种方法是用表面活性剂对TiO〓进行预处理，再进行TiO〓粒子存在下甲基丙烯酸甲酯的无皂乳液聚合，TiO〓粒子表面可形成一层均匀的聚合物膜，提出了包覆机理，指出单体在无机粉体表面发生聚合的关键是预先在粒子表面形成聚合场所，即吸附一层表面活性剂。

If a child crying is not dramatic, duration is not long, can give the child to soothe, shake the child, reduce the environmental noise can be an appropriate use of dimethyl silicone oil agents, dimethyl silicone oil is a non-absorbable drug, by changing the bubble surface tension, so that bubble fusion or diffusion, promote gas emissions, no side effects on the human body; such as severe abdominal pain episodes a long time, you can use spasmolytic agents such as belladonna preparations ,654-2, atropine, etc., these agents have a certain side effects such as face flushing, dry mouth dry skin, rapid heartbeat and so on, so the best use under the guidance of the doctors.

如小孩哭闹不剧烈，持续时间不长，可以给孩子以抚慰，摇动孩子，减低环境噪音，可适当服用二甲基硅油制剂，二甲基硅油是一种非吸收性药物，通过改变气泡表面张力，使气泡融合或弥散，促进气体排出，对人体无副作用；如腹痛剧烈发作时间长，可使用解痉剂如颠茄制剂、654-2、阿托品等，这类制剂都有一定副作用如面色潮红、口干皮肤干燥、心跳加快等，所以最好在医生指导下使用。

The effect of characteristics, including concentration and flow velocity of absorbent and feeding gas, on the CO_2 absorption process has been widely investigated. And the active materials of different concentration, including Potassium phosphate tribasic、 Potassium tetraborate、 N-methyldiethanolamine、 2-Amido-2-methyl-l-propylacohol and Piperazine, were added in the absorbent, of which the effect has also been investigated.

主要考察了气液流速及其浓度等操作参数对CO_2吸收性能的影响；同时研究了在氨基酸盐吸收剂中添加各种活化剂，包括磷酸钾、硼酸钾、N-甲基二乙醇胺、2-氨基-2-甲基-1-丙醇和哌嗪对CO_2分离效果的影响；并对膜组件运行的稳定性进行了初步考察。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。