查询词典 intermediates

More than 10 varieties: the organic alcohol series; phosphite series; acetate series, such as organic chemical products; and the type of catalyst and pharmaceutical intermediates.

十多个品种：即有机醇系列；亚磷酸系列；醋酸酯系列等有机化工产品；和类催化剂及医药中间体。

The lifetime of M intermediate of BRE194Q was less than 1.0 s by photomicrography. The lifetime of M intermediates of BRI119T/T121S/A126T and BRI119T/T121S/A126T/E194Q were 3.0 s and 2.0 s, respectively.

显微视频录像技术记录的PVA膜中样品的M态寿命表明，野生型BR的M态寿命最短，单突变体的M态寿命小于1.0 s，三突变体的寿命为3.0 s，四突变体的寿命为2.0 s。

The lifetime of M intermediate of BR(subscript E194Q) was less than 1.0 s by photomicrography. The lifetime of M intermediates of BR(subscript I119T/T121S/A126T) and BR(subscript I191T/T121S/A126T/E194Q) were 3.0s and 2.0s, respectively.

显微视频录像技术记录的PVA膜中样品的M态寿命表明，野生型BR的M态寿命最短，单突变体的M态寿命小于1.0s，三突变体的寿命为3.0s，四突变体的寿命为2.0s。

Committed to pyridine derivatives, adamantane derivatives, intermediates in areas such as medicine and research and synthesis.

致力于吡啶衍生物、金刚烷衍生物、医药及中间体等领域的研制与合成。

Its professionals are dedicated to the discovery of innovative pyridine derivatives, which are widely used as intermediates in the chemical and pharmaceutical industries.

公司的专业人员在各种吡啶类衍生物新产品的研制上做出了长期的努力，这类产品作为中间体广泛应用于精细化工和制药行业。

It is understood that the pesticide is pyridine, fine chemicals and pharmaceutical intermediates an important, long-term production companies in Europe and America to be a monopoly.

据了解，吡啶是农药，精细化工及医药中间体的一个重要的，长期在欧美长期生产企业出现了垄断。

Much attention has been given to pyruvate and its derivatives, for they are important intermediates in the process of organic and pharmaceutical syntheses.

丙酮酸系列化合物也是重要的有机合成和药物合成的中间体，已引起广泛的重视。

Proton acids were produced as intermediates and make quinoline occur in the form of its conjugated acid.

由于中间产物质子酸的生成，使喹啉以质子化的形式存在，当质子化产生的吸收增加与降解导致的吸收减少相等时，特征吸收峰313 nm处的吸收在1～3 min会出现平台，然后持续衰减。

We focused the study on the synthesis methods of quinoxaline, nitration of its aromatic ring and chlorination of its heterocycle. In this paper, we thought about environmental protection, the cost of material, the feasibility of industrialization, workup easily, and obtained 2,3(1H,4H)-quinoxalinedion, 6-nitro-2,3(1H,4H)-quinoxalinedion, 6,7-dinitro-2,3(1H,4H)–quinoxalinedion, 2,3-dichlo- roquinoxaline, 6–nitro-2,3-dichloroquinoxaline,and 6,7- initro-2,3-dichloro-quinoxaline. A more reasonable, easily, efficient and simple reactive route to synthesize above-mentioned compounds was developed by systematically investigating the yield, the purity and physical character of intermediates.

本文针对喹喔啉及其芳环硝化、杂环氯代的合成进行研究，主要考虑了环保性、原料成本、产业化的可行性、反应操作的简便性等问题，获得了2，3(1H，4H)-喹喔啉二酮、6-硝基-2，3(1H，4H)-喹喔啉二酮、6，7-二硝基-2，3(1H，4H)-喹喔啉二酮、2，3-二氯喹喔啉、6-硝基-2，3-二氯喹喔啉和6，7-二硝基-2，3-二氯喹喔啉等六个中间体，考察了反应产物的产率、纯度和性状等因素，得到了更为合理、方便、实用、简洁的可供产业化的合成路线。

It was pointed out that the major difference in all the routes was the adjustment in the synthesis of intermediates: 1 racemization of-intemediate; 2 asymmetric synthesis of-intermediate, 3 the preparation of duloxetine from-intermediate.

指出所有这些路线的主要的区别在于调整了中间体的合成方法：将不能利用的-中间体消旋，手性合成-中间体，-中间体制备盐酸度洛西汀。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。