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The absorption spectroscopic determination of aucubin by condensation with p-dimethylaminobenzaldehyde was optimized in this paper.

采用均匀设计法对对甲氨基苯甲醛显色法测定桃叶的显色条件进行了优化。

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Polybutylene terephthalate (PBT) is a semicrystalline thermoplastic polymer formed by a condensation process.

PBT是一种通过浓缩成型而制备的,一种半结晶热塑性塑

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A reduction in condensation is accomplished by the use of steam-jackets.

使用汽套就能达到降低冷凝

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Five Schiff bases were prepared from piperonal and diamines by condensation reaction.

合成新的双-胡椒醛缩类席夫碱化合物。

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A chiral hadronic model is extended to investigate antikaon condensation and hyperons production of protoneutron stars.

摘要用相对论平均场下的手徵强子模型研究了前中子星内(平均值)K凝聚和超子的生成。

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After the process of chlorization, hydrolytic decomposition and condensation, the hemopexis acid amine product was obtained.

用胡椒醛为起始原,经氯化、水解、缩合,制得血凝酸

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There was condensation on the windows.

玻璃窗上凝结水珠

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Thioxanthone photoinitiator was synthesized from DTSA by chlorination and condensation with isopropylbenzene in the presence of anhydrous AlCl3.

硫代苯甲酸(DTSA)经过酰氯化、氯代、然后与异丙苯在三氧化铝催化下缩合成为光引发剂。

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Aluminum propoxide for the Tishchenko condensation of propanal to propyl propionate is prepared from aluminum powder and propanol.

以合成出的丙醇铝为催化剂,无水氯化锌为助催化剂,用丙醛一步合成了丙酸丙酯,收率可达92%,选择性可达93%。

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Dicyclohexylcarbodiimide (DCC) is widely used in the reaction for synthesis of esters and amides as a condensation agent.

环己基碳(DCC)是酯化、酰化等反应常用的一种脱水剂,采用DCC脱水缩合,反应条件温和,合成收率通常较高。

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METHODS Balsalazide disodium was synthesized by reactions of condensation , reduction, diazotization , coupling and salification from 4-nitrobenzoyl chloride.

方法以对硝基苯甲酰氯为起始原,经缩合、还原、重氮化、偶合、成盐等反应制得巴柳氮钠。

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A planar tetradentate dinuclear ligand, 3, 5-bis(2-pyridyl) pyrazole, was synthesized by a three-step reaction of esterification, condensation and addition.

以2-吡啶甲酸为原,经酯化、缩合、加成合成了平面四齿双核配体3,5-(2-吡啶基)吡唑。

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System of law: The chloride of nicotinic acid via nicotinic acid chloride was then formed with the mannitol condensation.

甘露醇烟酸酯(Mannitol Nicotinas),降血脂及周围血管扩张药。Nicotinate mannitol (Mannitol Nicotinas), fat and peripheral vasodilator. 制法:以烟酸经酰氯化得烟酸酰氯,再与甘露醇缩合而成。

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Nowadays precision dew point hygrometers are mostly the type of light-electricity detection,thermoelectric refrigeration and specula-surface condensation dew point instrument internationally.

目前国际上的精密露点仪大多为光电检测且热电制冷的镜面冷凝式露点仪。

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Alizarin complexone is obtained by the condensation of alizarin with formaldehyde solution and iminodiacetic acid in the presence of alkaline conditions.

茜素络合指示剂是在碱性条件下由茜素、甲醛和氨基乙酸缩合而成。

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Thirteen new compounds of the alkyl styryl indoline spirobenzopyrans were synthesized from the condensation of 2-methylene indoline with the designed salicylaldehyde.

利用2-甲基吲哚啉和取代水杨醛缩合得到十三种新的烷基苯乙烯基吲哚啉螺苯并吡喃。

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Based on the theoretical analysis, the electrohydrodynamics (EHD) enhancement of condensation heat transfer inside vertical tube for five representative electrodes were investigated.

基于EHD强化管内凝结换热的理论分析,对5根直径不同的电极进行了垂直管内EHD强化凝结换热实验研究。

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The main synthetic methods of o-phenylphenol were reviewed.The method and research status of dehydrogenation to o-phenylphenol after cyclohexane condensation reaction were discussed detailedly.

摘要介绍合成邻苯基苯酚的几种主要工艺方法,对环己酮缩合脱氢法制邻苯基苯酚的合成方法及研究状况进行详细阐述。

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High-grade filling and retanning agent CDF was prepared by condensation polymerization reaction of urea,cyanuramide and dicyandimide.The property and application of the product were discussed.

本文主要论述了用脲、双氰、三聚氰等原经缩聚反应制备填充复鞣剂CDF的方法及其性能与应用。

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This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

讨论了以草酸乙酯为原,经过克莱森缩合、环合、氨解反应合成5甲基异唑3甲酰工艺的改进。

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双语版 TED-Ed 演讲精选

Condensation releases heat, and heat becomes the energy that drives huge upward drafts of air.

凝结释放热,热成为驱动大气流上升的

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学大揭秘

In 2001, these physicists won the Nobel Prize in physics for achieving Bose-Einstein condensation.

2001 年,这些物理学家因实现玻色-爱因斯坦凝聚而获得诺贝尔物理学奖。

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双语版 TED-Ed 演讲精选

Any storm is formed when condensation occurs, the byproducts of the clouds.

凝结发生的候,风暴就形成了,风暴是云的副产品。

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BBC 听力 2014年9月合集

It said the windows to the cockpit appeared to have been frosted or foggy with condensation.

他们表示,驾驶舱的窗户已凝结了一层雾水

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双语版 TED-Ed 演讲精选

The more condensation and the bigger the storm clouds grow, the more powerful those updrafts become.

凝结程度越大,并且形成风暴的云团越大,那些上升气流也就越强。

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老友记 听力

Little beads of condensation are inching their way closer and closer to the surface of the wood...

凝结的小水珠一点一点地向下接近木头桌子的表面。

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日常生活医学

Leptotene is of very short duration and it's when their progressive condensation and coiling of chromosome fibers takes place.

细线期的持续间很短,这是染色体纤维逐渐凝结和卷曲的过程。

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中高级英语短文

The tiny hairs on peaches delay this by collecting condensation droplets and holding them away from the fruit's skin.

桃子上的绒毛通过收集凝结液滴并将它们远离果皮来延缓这种情况。

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学——化学

Remember as a gas gets closer to condensation we're going to have more of these attractive intermolecular forces.

请记住, 当气体接近凝结, 我们将拥有更多这些吸引性的分子间力。

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老友记第一季(精校版)

Little beads of condensation are inching their way closer and closer to the surface of the wood. . -Monica: Stop it!

小水珠逐渐逼近桌面… -够了!

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世界史 Crash Course

In 533 Justinian published the Digest, an 800,000-word condensation of 1,528 Latin law books.

533 年,查士丁尼出版了《文摘》,这是 1,528 部拉丁法律书籍的 800,000 字浓缩版。

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PBS太空

But tiny grains of dust acted as 'condensation nuclei' to let droplets form.

但微小的尘埃颗粒充当了“凝结核”,让水滴形成。

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Crash Course 综合篇

And, that other polymers are formed by condensation reactions.

并且, 其他聚合物是通过缩合反应形成的。

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圣诞吃什么

That will prevent the pastry cream from getting any condensation or forming a skin.

这将防止糕点奶油凝结或形成皮肤。

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In Our Time: Philosophy

And each issue has a condensation of some book of note.

每期都会简要介绍一本重要书籍的精华内容。

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In Our Time: Philosophy

So they did a condensation of the road to serfdom.

于是,他们将《通往奴役之路》进行了浓缩

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学——化学

And this usually occurs as we get around condensation.

这通常发生在我们绕过冷凝水

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2017级专外有声

It is not established, however, that the endonuclease-induced DNA fragmentation itself causes the chromatin condensation.

细胞体积和形状的改变部分归因于凋亡细胞内谷氨酰胺转移酶活性的诱导。

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mould

Condensation is a kind of physical reaction .

冷凝是一种物理反应。

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In Our Time: Philosophy

The condensation was done by Max Eastman, who was a well-known journalist.

摘要由著名记者马克斯·伊斯门完成。

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