查询词典 condensation

The steam side heat exchange is a forced convective film condensation process of the flowing vapor, containing noncondensable gases. The flow filed and heat transfer behavior vary sharply along the cooling surface.

汽侧的凝结换热是存在不凝结空气的汽气混合物的强迫对流膜状凝结换热，流动与传热特性沿冷却表面变化剧烈。

The technical advantage of NOY company is in civil yarn chip; that of Aquafil is in bulk carpet filament chip; that of Zimmer is in tyre cord yarn chip; while that of PE is in the capability of producing middle and high viscosity of PA-6 chips simultaneously, and in the world advanced chip for membrane; and that of Invent-Fischer is in the capability of producing both high quality PA-6 civil chip, and high viscosity of PA-6 chip through the solid condensation polymerization process in series.

NOY、Aquafil、Zimmer公司的技术优势分别在民用丝用PA-6切片、膨体地毯丝用PA-6切片以及轮胎帘子线用PA-6切片上；PE公司的技术优势主要是可同时生产中、高黏度PA-6切片，且在生产膜用PA-6切片上世界领先；Invent-Fischer公司技术优势在于既可生产高质量的民用丝级PA-6切片，又可通过串联固相后缩聚工序生产高黏度PA-6切片。

An ideal numerical experimental model of the general circulation of the atmosphere is constructed with simple considerations of the radiation, turbulence exchange and condensation heatings and orographic effect.

本文建立了一个理想的大气环流数值试验模式，其中简单地考虑了辐射、湍流、凝结加热及地形的动力作用。

Nanu-SiO2 was syrtthesized though hydrolyzation-condensation of n- tetraethyl orthosilicate in organic solvent using sol-gel method.

西北工业大学理学院，西安710072摘要：采用溶胶一凝胶法，利用正硅酸乙酯在有机溶剂中的水解-缩合制备纳米SiO2。

Nanosize SiO_(2) particles were prepared using water-in-oil microemulsion method in polyether polyol with hydrolysis and condensation reactions of tetraethyl orthosilicate by means of controlling molar ratio of water to surfactant and selecting moderate hydrolysis temperature.

选择适当的乳化剂和水解温度以及控制水与乳化剂的摩尔比，采用W/O型微乳液法在聚醚多元醇中通过正硅酸乙酯的水解、缩合反应合成了纳米SiO2。

The SiO2 gel was prepared through hydrolysis and condensation polymerization of tetraethyl orthosilicate and H2O. The gel and LaNi4.25Al0.75 powders were mixed completely and heated at 500 ℃ for 2 h to obtain samples.

摘 要：以正硅酸乙酯为原料，采用溶胶凝胶法制备多孔SiO2凝胶，将LaNi4.25Al0.75合金粉与凝胶混合在500℃进行真空烧结。

Quasiequilibrium measurement of both vibrational spectra and desorption isotherms are presented for NH〓 overlayer on Ag surface with the substrate temperature higher than NH〓 condensation temperature.

利用光声振动谱能够在较高暴露气压下测量的特点，本文研究了120K清洁和预吸附氧Ag表面上，处于吸附和脱附动态平衡之中的物理吸附态NH〓分子的吸附构型。

Four phenylalanine derivatives were synthesized with this approach. The condition of the condensation reaction was optimized. The side reaction of the Curtius reaction was studied and a urine by-product was isolated and characterized.b. Through the detailed study of the behavior of various N-acetyl phenylalanine methyl esters under the condition of the Bischler-Napieralski reaction, it was found for the first time that the formation of benzyl oxazole derivatives was a competitive approach with the normal B-N reaction.

一、基于Bischler-Napieralski反应设计了以苯丙氨酸衍生物为原料的路线，在这条路线的研究中，主要取得了以下结果：、建立了一条以芳香醛和丙二酸单甲酯为原料，通过缩合、氢化、Curtius等反应制备苯丙氨酸甲酯的通用合成路线，对其中的缩合反应条件及Curtius反应中的副反应进行了深入的研究，利用这条路线合成了四个芳环取代的苯丙氨酸单甲酯衍生物。

The synthesis method of the invention is as follows: first, 5-amino-2-(p-aminophenyl)- benzoxazole and aliphatic diacid are respectively recrystallized; NMP is distilled; solubilizer is dried; second, in an atmosphere of nitrogen, after Py and NMP are mixed evenly and added to a sealed reactor, the solubilizer is added into the reactor, followed by the 5-amino-2-(p-aminophenyl)- benzoxazole, then the mixture in the reactor is stirred; second, in an atmosphere of nitrogen, the mixture in the second step is stirred and heated to 50-150 DEG C, then the aliphatic diacid is added, followed by TPP for condensation; fourth, after methanol is poured into the reactor, the sediment is separated out from the mixture, filtered, washed and dried, so the semi-aromatic polyamide containing oxazole ring is obtained.

本发明的合成方法如下：一、分别重结晶5-氨基-2-苯并唑与脂肪族二酸；蒸馏NMP；干燥增溶剂；二、在氮气气氛下，Py与NMP混匀后加入密封的反应器中，再加入增溶剂，然后加入5-氨基-2-苯并唑，搅拌；三、在氮气气氛下，将步骤二的混合液搅拌并升温至50℃～150℃后加入脂肪族二酸，再加入TPP后缩聚；四、再倾入甲醇析出沉淀，过滤，清洗沉淀，再干燥；即得到含唑环半芳香聚酰胺。

Fourteen unreported N-substituted piperidin-4-one oxime ethers derivatives were synthesized withsubstituted benzylamines or phenethylamine as raw materials via a series of Michael addition, Dieckmann condensation, hydrolysis decarboxylation reactions, oximation a...

以取代苄胺或苯乙胺为起始原料，依次经Michael加成，Dieckmann缩合，水解脱羧，肟化和醚化等多步反应合成了14个未见文献报道的N-取代哌啶酮肟醚衍生物。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。