steric
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n.
(原子的)空间(排列)的,位的;
词组短语
steric hindrance位阻,位阻现象
steric effect[化]立体效应(空间效应)
双语例句
用作形容词(adj.)
A rather more complex case is that of steric isomerism.
更复杂的情形是立体异构问题。
The stereoselectivity was improved by increasing steric hindrance of the reactions.
通过增加反应的空间位阻改进了反应的立体选择性。
权威例句
Antibody steric hindrance immunoassay with two antibodiesSteric factors influencing hybridisation of nucleic acids to oligonucleotide arrays.
Steric effects in the dynamics of electrolytes at large applied voltages. I. Double-layer charging
Controlled Crystallization of CaCO3 Under Steric Acid Monolayers
ChemInform Abstract: STERIC EFFECTS OF PHOSPHORUS LIGANDS IN ORGANOMETALLIC CHEMISTRY AND HOMOGENEOUS CATALYSIS
Reactivity of Monolayer-Protected Gold Cluster Molecules: Steric Effects
Sawaya, M. R. et al. Atomic structures of amyloid cross- spines reveal varied steric zippers. Nature 447, 453-457
An N‐Heterocyclic Carbene Ligand with Flexible Steric Bulk Allows Suzuki Cross‐Coupling of Sterically Hindered Aryl Chlorides at R...
Theoretical studies of enzymic reactions: dielectric, electrostatic and steric stabilization of the carbonium ion in the reaction of...
ChemInform Abstract: OXIDATION OF ALCOHOLS BY “ACTIVATED” DIMETHYL SULFOXIDE. A PREPARATIVE STERIC AND MECHANISTIC STUDY
1. There are mostly the electron effects and steric effects for the interatomic interactions in organic compounds.
有机物分子中原子之间的相互作用主要有电子效应和空间效应。
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2. The effects of anionic polymer dispersant with different structures on the electrostatic and steric repulsion forces between particles in the aqueous suspension are mainly studied.
着重研究了不同结构的阴离子聚合物分散剂对悬浮液中颗粒间的静电斥力和空间斥力的影响。
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3. Adding surfactant with larger steric structure and longer linear chain could significantly improve the anti-repeated heating and shear-resistant properties of the pour point depressant.
添加有较大的空间结构和较长直链的表面活性剂对原油流动性改进剂抗重复加热和抗剪切能力的改善效果最好;
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4. A new steric anisotropic pair potential is studied based upon molecular field theory.
基于分子场理论,研究一种新的空间各向异性两体作用势。
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5. The steric structure is the main effect on the herbicidal activity as results.
研究结果表明,影响其药效的主要因素是空间结构。
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6. Steric stabilized siloxane hybrid acrylic polymer(SSPA) dispersion is prepared by surfactant-free emulsion polymerization with thiol end group polyvinyl alcohol(PVA-SH) as protective colloid.
以分子链一端为巯基的聚乙烯醇(PVA-SH)为保护胶体,合成了空间稳定的硅氧烷改性丙烯酸酯聚合物乳液。
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7. Steric stabilized siloxane hybrid acrylic polymer(SSPA) dispersion was prepared by surfactant-free emulsion polymerization with thiol group terminated polyvinyl alcohol(PVA-SH) as protective colloid.
以分子链一端为巯基的聚乙烯醇(PVA-SH)为保护胶体,合成了空间稳定的硅氧烷改性丙烯酸酯聚合物乳液。
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8. The explanation of these results is based on the assumption that there are reaction mechanisms and steric effects of the zeolite pore.
实验结果可由氢型丝光沸石催化剂的酸强度、酸量、酸中心类型以及沸石晶体孔结构的空间效应与反应机理予以说明。
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9. The ligand mixing reaction, the nonintegral metal- ligand ratio in compound compositions, the even-odd effect and related phenomena are analysed in the light of the steric packing of the ligands.
从配体空间堆积效应分析了配体混合重排反应、金属—配体非整数比化学组成、奇偶效应等现象。
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10. The result showed that the steric factors of substituents were important parameters affecting the aerobic biodegradability of the tested compounds.
结果表明,对邻苯二甲酸酯类化合物而言,取代基的空间结构参数是影响受试物好氧生物降解性能的重要因素。
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11. In the end, the steric hindrance of the acetyl group was discussed.
最后,本文讨论了空间位阻效应对反应性质的影响。
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12. The reinforced concrete has an obvious steric effect in real earthquakes. There is a complicated coupling between the axis force and compound bending which change in side columns and angle posts.
在实际地震作用下钢筋混凝土结构的反应常常呈现明显的空间效应:框架边柱或角柱中变化的轴力和双向弯曲存在复杂的耦合作用。
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13. From structure of organic compounds, this paper analyses and discusses impact of acids basing activity of organic molecules about electronic effect, hybrid method and steric effect.
主要从有机化合物的结构出发,分析和判断了电子效应、杂化方式及空间效应等因素对有机分子酸碱性的影响。
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14. The results show that herbicidal activity is closely related to the steric and electronic properties of the 5-position of the benzene ring.
结果表明,此类磺酰脲类化合物的除草活性与苯环5位取代基的立体结构和电场性质密切相关。
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15. According to the steric field and electrostatic field of the model, some compounds which have high predicted activity were forecast, and they may be employed as reference for further study.
根据模型的立体场和静电场要求设计了一批化合物,其中多数化合物预报的杀菌活性较高,为进一步合成和筛选该类化合物提供了依据。
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16. The stereoselectivity was improved by increasing steric hindrance of the reactions.
通过增加反应的空间位阻改进了反应的立体选择性。
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17. This text illustrates the application of hybrid orbital theory in the field of explaining the steric configuration of molecule and the change of chemical property.
并举例说明了杂化轨道理论在解释分子空间构型和物质化学性质的变化上的应用。
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18. The result indicates that there is a good correlation between the distribution of molecular steric and electrostatic field and bioactivity.
结论说明该系列化合物的分子立体场和静电场的分布与生物活性之间有良好的相关性。
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19. And it was found that dioxo-methyl group was a key factor to determine the antioxidant activity of DCLs, because its O and C had rather high net charge and its steric hindrance was rather low.
发现二氧甲基基团具有较大的O原子负电荷及C原子正电荷,且空间位阻较小,因此成为决定五味子素抗氧化活性的关键因素。
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20. These could be related to the difference in solubility of KGM, viscosity of the reaction system, steric hindrance, and granule structure of KGM with different Mw values.
KGM分子量对该反应的影响与不同分子量KGM的溶解度、体系粘度、空间位阻及颗粒形态等因素有关。
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21. Space steric hindrance resulted by length lateral chain and electrostatic repulsion of charged ion made the main contribution to water-reducing effect of PAA.
自制PAA系列的减水机理主要为其长侧链引起的空间位阻作用及其带电离子的静电斥力作用。
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22. The mechanism of its influence on the system was also explained by the effect of steric stabilization.
结果发现乳液膜的稳定性显著提高,并用空间稳定作用对结果作了解释。
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23. Their extraction ability markedly decreases with the increase of the steric hindrance from ester alkyl group.
萃取能力随着酯烷基空间位阻的增大而显著降低。
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24. Excellent dispersing performance of ASP is the result of co-action of electrostatic repulsion and steric hindrance.
ASP良好的分散能力是静电斥力和空间位阻共同作用的结果。
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25. The steric effects on the reaction of 6, 6-dialkylfulvene with organolithium have been studied.
本文研究了6,6-二烷基富烯与有机锂反应的立体效应。
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26. It was considered that steric hindrance and electrostatic repulsion were the main stabilizing mechanism.
空间位阻和静电排斥是其乳状液稳定的主要机理。
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27. The shape equation of the membrane vesicles and the steric force caused by the undulations are described.
介绍了基于这一理论所导出的细胞膜的形状方程式和膜间的热涨落排斥力。
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28. The steric and electronic configuration around the center metals has profound effect on the polymerization activity and the stereo- and regio-selectivity of the resulting polymers.
中心金属离子周围的电子效应和空间效应影响着催化剂的反应性能和所得聚合物的微观结构。
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29. The steric and electronic configuration around the center metals has profound effect on the polymerization activity and the stereo- and regio-selectivity of the resulting polymers.
中心金属离子周围的电子效应和空间效应影响着催化剂的反应性能和所得聚合物的微观结构。
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30. Macromolecules cannot approach the ligand owing to steric hindrance of the matrix.
由于载体的立体位阻的关系,大分子化合物不能接触到配基。
-- 来源 -- 英汉 - 辞典例句
31. It follow therefore that the steric blocking effects of substituents are reflected in adverse kinetic, rather than thermodynamic factors.
由此可以看出,取代基的主本阻碍反应,是反映在违背动力学因素而不是热力学因素。
-- 来源 -- 英汉 - 辞典例句
32. A multi-center fragmentation is governed by steric factors.
多中心断裂受到位阻因素的控制。
-- 来源 -- 英汉 - 辞典例句
33. Severe steric effects at the reactive carbon would impede the substitution.
大的立体效应阻止在碳上的取代。
-- 来源 -- 英汉 - 辞典例句
34. Steric effects in 126 may also be responsible for its inertness to the Grignard reagent.
(126)的空间效应也是它对格氏试剂反应迟钝的原因
-- 来源 -- 英汉 - 辞典例句
35. steric hindrance
【化】位阻现象
-- 来源 -- 英汉 - 短句参考
36. steric effect
立体效应
-- 来源 -- 英汉 - 短句参考
37. steric configuration
空间构型
-- 来源 -- 英汉 - 翻译参考[网络]
38. steric acceleration
空间加速度
-- 来源 -- 英汉 - 翻译参考[网络]
39. A rather more complex case is that of steric isomerism.
更复杂的情形是立体异构问题。
-- 来源 -- 英汉 - 辞典例句
steric




