查询词典 synthesizing

The application of MSPC in continuous process and batch process is introduced, basing on the processes of synthesizing of Phosphonic Acid Dimethyl and batch cooling crystallizer.

分别以农药原料亚磷酸二甲酯生产过程和间歇冷凝结晶生产过程为应用背景，介绍了多变量统计过程控制在连续过程和间歇过程中的应用。

Poly and its derivatives are a kind of promisingmaterials used in electron luminescent devices and solar cell. Thus, study on themechanism of photooxidative degradation of phenylenevinylenes is significantlymeaningful in synthesizing stable functional materials.

聚对苯撑乙烯及其衍生物在有机发光器件和太阳能电池领域有着广阔的应用背景，因此研究其光氧化降解机理，对于设计合成更稳定的、性能更优良的有机材料，来提高器件使用寿命有着现实的指导意义。

Methods for synthesizing of pinacol are reviewed,the difference of catalytic effects and stereoselectivity with various catalytic systems are introduced in this paper.Highlights are laid on the mechanism and stereoselectivity of new synthetic methods catalyzed by low valent Samarium, Titanium and Trimethyl chlorosilane, etc.

频哪醇合成新进展* The Recent Progress in the Synthesis of Pinacol 李有桂蒋昌盛尤田耙**(中国科学技术大学化学系合肥 230026)本文综述了合成频哪醇的方法，介绍了不同催化体系的催化效果和立体选择性的差异，着重介绍了低价钐、低价钛、三甲基氯硅烷等新的合成频哪醇反应的机理和立体选择性。

Expanding pinacol reductive coupling reaction into asymmetric one with both diastereoselectivity and enantioselectivity may lead to its application in synthesising medicaments and biologic active compounds with structure of vicinal diol. Asymmetric pinacol coupling reaction is also the most compact and effecient method in synthesizing chiral ligands or chiral auxiliary with C〓 symmetry.

将这一反应发展成为既有高度的非对映选择性，又有高度对映选择性的不对称偶联反应在合成许多含有手性邻二醇结构的药物或生物活性物质将有更重要的应用，同时不对称Piancol偶联反应也是合成C〓对称性的邻二醇多用途手性配体或手性助剂的最为简捷有效的方法。

The comparative investigation of synthesizing the polyhydric alcohols, such as pentaerythritol, pentaglycerine, trimethylolpropane, neopentyl glycol and so on are conducted, these compounds are all based on the reaction of cross-aldol condensation.

对季戊四醇、三羟甲基乙烷、三羟甲基丙烷、新戊二醇等基于交叉羟醛缩合反应的多元醇类化合物的合成进行对比研究。

An improved method of synthesizing constrained robust model predictive controller for systems with polytopic description is proposed.

针对多包描述的不确定系统，提出一种新的鲁棒约束预测控制器。

Monomer which is used to synthesize polypropylene ester, mechanism of polymerization, a formula and technique parameters of synthesizing propenoic acid ester polymer are studied. An emulsifying stabilizer with good properties is synthesized.

本文研究了合成聚丙烯酸酯类物质的单体、聚合反应的机理、合成丙烯酸酯类聚合物的配方以及工艺参数，合成了具有良好性能的乳化稳定剂。

Inflorescence development was divided into four stages, the initiating expansion pseudobulb, initiating inflorescence (1-3 cm in flower stalk length), the initial-branching flower stalk, and full bloom inflorescence, respectively. The activity variations of mannan cleaving enzymes,-mannosidase (EC 3.2.1.25), endo--mannanase (EC 3.2.1.78), and the mannan synthesizing enzyme, GDP-mannose pyrophosphorylase (EC 2.7.7.13), were analyzed during different stages to better understand the role of mannan-metabolizing enzymes during inflorescence development of the Oncidium.

将花梗发育过程分为四个阶段，分别为假球茎刚膨大、刚抽梗（花梗长度约1-3公分）、花梗刚分叉以及花盛开，分析参与分解甘露聚醣之酵素－β-mannosidase（EC 3.2.1.25）及endo-β-mannanase（EC 3.2.1.78），与合成甘露聚醣之酵素－GDP-mannose pyrophosphorylase（EC 2.7.7.13），在不同阶段假球茎内的活性变化，了解在花梗发育过程中代谢甘露聚醣之相关酵素所扮演的角色。

Secondly, according to the construction and characteristic of the N-isopropylacrylamide and the temperature-sensitivity of PNIPA hydrogel, Pdualistic hydrogel was synthesized by microwave low temperature plasma. The effects of the factors on the swelling characteristic of P dualistic hydrogel, such as treatment time and power of plasma, concentrations of crosslinking agent and total monomers, proportion of AMPS, polymerizing temperature etc, was discussed in detail. The three dimensions structure , thermostability , reversional volume , swelling/deswelling kinetics, temperature-sensitivity and pH-sensitivity of the hydrogel were also investigated. The optimal synthesizing technics of P dualistic hydrogel initiated by microwave low temperature plasma was confirmed.

在此基础上，结合NIPA的结构特征和PNIPA的温敏性，用微波低温等离子体引发聚合了P二元智能凝胶，详细探讨了微波低温等离子体处理功率、处理时间、总单体浓度、AMPS单体浓度、交联剂浓度及聚合反应溫度等因素对P二元凝胶溶胀性能的影响；并对其三维交联结构、热稳定性、失水-吸水动力学、温度敏感性、pH敏感性、体积复原性等进行了研究；确定了适合微波低温等离子体引发聚合P二元智能凝胶的最佳工艺。

It must develop community s hygiene service to reach the goal of synthesizing sanitarily .

要实现综合保健的目标，必须发展社区卫生服务。

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