- 与 hindered 相关的网络例句 [注：此内容来源于网络，仅供参考]
We also accomplished the synthesis of highly hindered depsipeptide moiety of the anti-tumor drug Actinomycin D using CMBI.
我们还采用此缩合剂合成了抗癌药物 Actinomycin D 中空间位阻较大的酯肽链部分。
Principles of hindered amine adduct ,performances and application processes of resulted aliphatic polyurea paints are introduced.
The wind finds voice, not when rushing across the open sea, but when hindered by the outstretched arms of the pine trees, or broken by the fine strings of an Aeolian harp.
Women are free to swim and sunbathe less hindered by clothing on the private beaches west of Alexandria, such as Agami, and at resorts populated by foreign tourists on the Red Sea coasts.
This writing studies the relationship between Macau air transportation service market and CEPA by making attempts to analyze its market efficiency, how monopoly created through the umbrella of air traffic concession rights has hindered the market development.
Based on the established synthetic processes for polymeric HALS, two novelpolymeric high molecular weight and multi-functional stabilizers with hindered amineand hindered phenol as active groups together were designed in order to attain lightstability and antioxidant functions.
The synthetic technologies of three hindered amine light stabilizers were established, the reason for the insoluble side products formed in the production of polymerized hindered amine light stabilizers were studied, and a series of novel hindered amine light stabilizers with antibacterial properties were designed and synthesized in this present paper.1. Based on the investigation of the transesterification between dimethyl sebacate and 1,2,2,6,6-pentamethyl-4-piperinol, the synthetic technologies of Tinuvin292 and Tinuvin 765 were established. The two kinds of hindered amine light stabilizers were obtained in the yield of 93.3% and 92.4% respectively and qualified as the advanced level of the kindred overseas products.2. The synthetic technology of Tinuvin123 was studied and established.
Work 工作:(1) feasible process development for high-pure tetraalkyphosphonium salt as catalysts for polymerizations, potential sale 2-4 million us$;(2) simple and feasible preparation process for phosphonium salt as ionic liquids, biocides and phase transfer catalysts;(3) new and industrially feasible processes for highly sterically hindered alkylphosphines as catalyst ligands, these include tricyclohexyl-phosphine, phosphorinanes and dsmphos2,3- bis(9-phosphabicyclononylbutane;(4) sterically hindered dialkylphosphinic acid as new generation of co/ni extractant;(5) alkylphosphonium wittig reagents and the wittig reactions with them;(6) exploration of the application of borane chemistry in the synthesis of highly sterocally hindered organophosphines;(7) customer preparation of samples of a variety of organophosphorus compounds for customers all over the world.
用作高分子聚合反应催化剂的高纯度四烷基瞵盐的实用生产流程。产品销售前景 2-4 百万美元；(2)用作离子化液体，杀菌剂和相转移催化剂的烷基瞵盐的简单实用合成方法；(3)高位阻烷基磷化氢催化剂配体的工业实用合成路线的研究，这包括，三环己烷基磷， phosphorinanes 和 dsmphos 2，3-bis(9-phosphabicyclononylbutane ；(4)高位阻二烷基膦酸金属萃取剂的工业实用合成路线的研究；(5)烷基膦 wittig 反应试剂的研究；(6)硼化学在高位阻烷基磷化氢合成中的应用；(7)为世界各地提供顾客合成服务。
To further testify the high efficiency of these new reagents in the synthesis of sterically hindered peptides, we successfully synthesized the extensively -N-methylated peptide moiety of the antineoplastic and lipophilic depsipeptide Dolastatin 15 using reagent BEP and FEP. We also synthesized the highly hindered tetrapeptide segment of Cyclosporin A using reagent BEMT and BEP, respectively.
为进一步检验这类吡啶正离子型缩合剂在有空间位阻的多肽合成中的性能，我们以BEP和FEP为缩合剂，成功地合成了具有抗肿瘤活性的亲脂性酯肽Dolastatin 15分子中高N-烷基化的肽链部分；分别以BEMT和BEP为缩合剂合成了生物活性肽Cyclosporin A中空间位阻最大的四肽片断。
The English's being driven out of France is regarded as ablessing for both countries.If the English had remained in France,the superior size and wealth of France would have hindered the development of aseparate English national identity,while France was hindered so long as aforeign power upied so much French territ ory.
And the kinetics of exchange between FDP-Cl ion with HJ-30 weak base ion exchange resin were studied.
Gynostemma, also named seven gallbladders, belongs to cucurbitaceae family, gynostemma genus.
So you can understand why she turned down a good Job offer to work among refugee immigrants and low－income groups after she got her degree in social sind ie s.