steric是什么意思   steric怎么读

steric单词基本解析：

steric变化用词：

steric英英释义：

steric中文词源：

steric用法和例句：

steric

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

(3) the ozone resistance was improved if there was other bigger groups near the reactive group in the dye structure for the steric hindrance was increased.

(3)分子结构中反应性基团附近具有其他体积较大的基团时，造成空间位阻增大，耐臭氧性能会得到提高。

The proton chemical shifts are assigned with the influence of steric, inductive and conjugative effects and compared with those of similar compounds [18].

1 。质子化学位移的分配与影响阻，电感和共轭效应和比较，与类似化合物[ 18 ] 。

Spiral 3D CT images showed the steric anatomical images and relationship to the adjacent structures clearly in 25 patients.

25例患者三维CT重建图像均清晰显示主体解剖图像及周围关系,图像直接显示了颌骨骨折的部位及空间结构关系。

Many transport mechanism models have been proposed such as the space-charge model, the electrostatic and steric-hindrance model, Donnan steric pore model and dielectric exclusion etc.

>仪器和设备都已用于膜的结构表征，但仍有一些参数 表征非常困难，制定规范化的测试标准和探索新的表征方法都有重要的意义。

The effect of steric hindrance and electron on aromatic aldehydes reduced by BER

BER还原芳醛的位阻效应和电子效应

Keywords HMO theory;carbene;electronic structure;steric structure;

HMO理论;卡宾;电子结构;空间结构;

The difference of the relative position of H atom can affect the kind of bond-bond steric exchange energy.

H原子的相对位置的差异影响了键-键立体排斥能的类型。

Copolymers with, microphase separation were obtained. The structure of PEO phase domains changed from homogeneously dispersed sphere with regular interface to steric continuous network when the EO content reached 52.16%.

PEG-g-PAn共聚物存在着微观相分离，并且当共聚物中的EO单元的摩尔含量增至52.16%时，PEO微区则从相畴界面规则、尺寸分布较均匀的球形结构变成连续的网络结构。

PH AND IONIC STRENGTH DEPENDENCE OF STERIC MASS-ACTION MODEL PARAMETERS

pH值和离子强度对空间质量作用模型参数的影响

The phase difference in global MSL variations between TOPEX/Poseidon observation and steric model prediction implies a systematic difference between them.

T/P观测和比容模型得到的全球MSL变化的位相差是一系统偏差。

effect of steric hindrance

[化] 立体位阻效应

ABSTRACT Objective To explore steric morphological cons tructions of acupoints and provide correlative fine morphological image of acupo ints.

[摘 要] 目的：为揭示穴位的立体形态结构，提供穴位的相关精细形态图像资料。

The three-dime ional “functional shape” formed by the steric （physical） and electric fields of a drug molecule that cause the molecule's pharmacological activity.

一个药物分子经过物理或电场作用形成三维功能结构从而引起分子的药理活动。

3D CT could display the steric and fracture type,especially for special type of fracture.

三维CT能观察到立体的骨折线走行方向、骨折类型 ,对特殊类型骨折显示较佳 ;

Aminoacids that cannot fit into the editing site would be rejected because they are either toosmall to bind tightly at the active site (such as Ala) or have steric hindrance with thesurrounding residues (such as Leu).

不适合进编校位点的氨基酸将会被排斥掉,因为它们要么太小以至于不能紧密结合在活性位点(比如Ala) ,要么和蛋白质上口袋中活性位点周围的氨基酸残基有立体化学位阻(比如Leu)。

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VCD, karaoke, MTV, Dallas, Fiat, Getai, Singer, Show, 张天成, Kreta, Ayer, CD, DVD, Song, Concert, Dreamer, Band, ChinaTown, Steric, Singing, 881, Malaysias, 十二, 钱, 乐邻, 莲花, 歌台, 43

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Chinese herbs combined with steric and dynamic interference current therapy on 60 patietns with hemiparalysis after stroke

中药内服配合立体动态干扰电疗仪治疗脑卒中偏瘫60侧

It will help to create you a volume steric, curling, long attractive eye lash and effectively improve your eye shape.

丰盈睫毛，超速体现，营造出立体、卷翘、纤长的诱人睫毛，有效提升眼部立体感。

Keywords latex paint;DLVO theory;steric stabilization theory;influencing factor;

乳胶漆;DLVO理论;空间稳定理论;影响因素;

The extraction behavior of dialkyl( aryl) Sulfides may be controlled by polar and steric substituents effects.

二烃基(基)醚的萃取行为受极性和空间取代基效应的控制.

steric barrier

位势垒

steric retardation

位滞

steric hindrance

位阻

steric protection

位阻保护作用

steric factor

位阻因素 空间因素

steric mode

位阻型

steric influence

位阻影响

steric exclusion

位阻排阻 空间排斥

steric phenomena

位阻现象

steric stabilization

位阻稳定

Keywords Steric hindrance amine;Mechanism;Activation;Application;

位阻胺;机理;活化;应用;

Determination of molecular weight averages and molecular weight distribution of polystyrene standards by steric exclusion chromatography

体积排斥色谱法测定聚苯乙烯标准样品的平均分子量及分子量分布

The acidity of the Carboxylic acid to depends on its induction effect, conjugative effect and steric effect.

光气是无色气体，味甜，它是一个毒性十倍于氯气的肺损害剂，能引起窒息，使用时应注意安全。

steric inhibition of resonance

共振空间阻碍

Keywords dissociation constant stability constant linear free energy relationship steric effect;

关键词离解常数;稳定常数;直线自由能关系;空间效应;

This paper reports studies of IR spectra of a series of macrocyclic polyethers and their substitution derivatives and the information of steric effect in the molecule.

内酯冠醚化合物的红外光谱研究报道很少,特别是随醚环的扩大和醚环骨架上不同取代基的引入所引起的中红外光谱的变化尚缺乏研究。

The blending system has a better compatibility with 1227 when the anionic surfactant contains polyoxyethylene chain as well as the hydrophilic group of big steric hindrance of.

分子中既含聚氧乙烯链,又具有较大空间位阻亲水基(琥珀磺酸酯)的阴离子表面活性剂与阳离子表面活性剂1227具有较好的复配相容性。

Studies on the Effects of Steric Hindrance of Guest Molecule on the Formation of Inclusion Complexes by Molecular Luminescence

分子发光法研究空间位阻效应对包络物形成的影响

The dependence of chain scission and racemization on temperature results from molecular motion, "cage effect" and steric hindrance during recombination.

分子量降低和消旋作用对温度的依赖性,是由于分子运动和笼罩效应以及重合的空间位阻效应所致。

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创新歌台,花莲宫881绣之夜. 由善信"陈金建"先生喜敬 .

Study of Steric Structures of Substituted Indenyl Titaniun and Zirconium Complexes Using Two Dimensional NMR Spectra

利用二维核磁共振方法研究取代茚基金属钛、锆配合物的空间结构

A well-dispersed system could be obtained by mechano-chemical modification using appropriate dosage of polymer dispersants.In the white system, space steric effect indu...

利用适当用量的聚合物分散剂进行机械化学改性,可以得到良好分散的体系。

Keywords chemical non-equilibrium reactions;DSMC;combined reaction;steric factors;

化学非平衡;DSMC;复合反应;位阻因子;

In the synergetic agent, there must be a functional group possessingstrong coordination ability without steric hindrance.

协萃剂结构不仅要求无空间位阻,而且具有强的配位基。

Keywords one-component;polyurethane;steric hammer varnish;

单组分;聚氨酯;立体锤纹漆;

Keywords Porphyrin;Apparent protonation constants;Conjugate effect;Steric hindrance;UV-VIS spectra;

卟啉;质子化常数;共轭效应;空间效应;电子吸收光谱;

Bi-functional reactive dyes can form crosslink age among the Chitosan fibers, especially the two functional groups located at different end owing to small steric hindrance.

双活性基染料可在甲壳胺纤维大分子间形成交联，其中双侧型双活性基染料空间效应小，交联程度相对较高。

Keywords Immobilized metal ion affinity chromatography;Dye ligand affinity chromatography;Bovine serum albumin;Lysozyme;Iminodiacetic acid;Reactive blue X-BR;steric mass-action model;

固定化金属离子亲和色谱;染料配体亲和色谱;牛血清白蛋白;溶菌酶;亚氨基二乙酸;活性艳蓝X-BR;空间质量作用模型;

The steric hindrance effect was strong about the influence of constructure of alcohols on the esterifications .

在优化反应条件下,乙酸正丁酯的平均酯化率为97.8%.

Alkene crown derivative lead into copolymer for increasing water solubility of oligomer and decreasing steric crowded of sugar residue.

在聚合过程中引入冠醚烯类衍生物进行开环共聚合反应，以增加寡聚合物的水溶性及降低醣残基的立体拥挤性；

Adding some modified monomers in the PET, the steric resistance of molecular increases, and crystalizability of COPET decreases, so thermal shrinkage is greatly improved.

在聚酯中添加改性单体后,分子链空间位阻增大,共聚酯的结晶能力下降,热收缩性得以提高。

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。

A multi-center fragmentation is governed by steric factors

多中心断裂受到位阻因素的控制。

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。

The results indi-cate that increase of basicity and steric hindrance of ligand,and selectingsuitable transitional metal may increase selectivity and activity of polymericcatalysts.

实验结果说明,增加配位体的碱性和位阻; 选择合适的过渡金属都能提高催化剂的选择性.

For a nucleophile, its regioselectivity is also controlled by both steric hindrance and electronic effect.

对于亲核试剂，一般的亲核试剂也同时受电子效应和空间效应的影响；

The effect of solvents and steric hidrance on the stereochemistry of cyclization is investigated in details.

并且考察了在环合反应中溶剂和空间位阻对立体选择性的影响。

Keywords superfined particle;titania;steric dispersant agent;

微粒子;二氧化钛;空间分散剂;

Scientifically, two main stabilization mechanisms can be distinguished: electrostatic and steric stabilization.

按科学的方法,主要分为两种稳定机理:静电排斥和空间位阻。

The reason is inferred in the introduction of Y to replace the volume of heterocyclic DepartmentMuch of the substituent on the XXX and YYY mother nuclear receptor steric combination.

推断其原因是在Y取代杂环处引入体积太大的取代基会对XXX的YYY母核与受体的结合产生空间位阻。

. the film thickness is double by the comparison of lignosulphonate and modified lignosulphonate in the respect of the space steric hindrance.

改性木钠的空间位阻作用与未改性木钠相比较，其表面吸附膜厚度增加1倍左右。

common pairwise overlap steric volume

普通对偶重叠空间体积

A rather more complex case is that of steric isomerism

更复杂的情形是立体异构问题。

minimal steric difference

最小立体差异

In this paper, the basic principles of steric stability are introduced to thermodynamics. In addition the effects of influence the stability of polymer latexes are summariesed.

本文从热力学角度阐述了聚合物胶体的空间稳定机理和影响聚合物胶体稳定的各种因素。

In this paper,the steric structures of complexes with coordination number 4 are discussed according to the CFSE of metal ions in different field (D4h and Td field) and the steric repulsions of ligands.

本文从金属离子在正方形和四面体场中的CFSE以及配体间的排斥作用出发，讨论了四配位配合物的空间结构。

The molecular weight distribution and content of organics in membrane bioreactor were analyzed with the combination of steric exclusion chromatography and refractive index detector.

本研究将空间排阻液相色谱和示差折光检测器联用,测定膜生物反应器中有机物的分子量分布特性并进行定量分析。

Keywords Calixarene;skeleton with cone conformation;steric effect;nickel chromoionophore;fluorescent copper acceptor;

杯[4]芳烃;锥形骨架;立体效应;镍显色受体;铜荧光受体;

Keywords extreme pressure-antiwear additive;lithium complex grease;electronegative double bond;positive induction effect;space steric effect;

极压抗磨添加剂;复合锂基润滑脂;负电性双键;正诱导效应;空间位阻效应;

The steric inhibition of electron delocalization is drastically reduced as the limited conformational freedom of conjugated ladder-type polymers.

构型严重受限使得这种梯形共轭聚合物由于空间位阻或构型转变导致的电子离域现象完全得到了抑制。这带来了一系列光电热方面的独特性质。

Keywords conformational effect;steric effect;stereoelectronic effect;intermediate;stereoselectivity;

构象效应;立体电子效应;位阻效应;过渡态;立体选择性;

Some albumin molecules may hae undergone steric modification or ligand binding such that the immunoreactie sites hae become obscured.

某些白蛋白分子也许经历了空间修饰或配体结合上的改变以至于其免疫反应位点被湮没。

steric anomaly

比容异常 比容偏差

steric sea level

比容海平面

Steric Effect on the Reaction of N-carboxyanhydrides of Amino Acids with Amines

氨基酸N-羧酸内酸酐与胺反应的位阻效应

Keywords Fenvalerate Steric structure Quantity NMR;

氰戊菊酯;立体结构;含量;核磁共振;

Oleylamine was also found on the surface of nanoparticles, indicating its role as capping agent which provided steric protection of as-synthesized nanoparticles from agglomeration.

油胺也存在于纳米颗粒的表面，表明它具有帽化试剂的作用，能通过提供位阻保护作用防止测试纳米颗粒发生凝聚。

The Stabilization of the mixed species is considerably influenced by statistical effect, electrostatic effect, steric effect, cooprerative effect and covalency of the coordination bond.

混合络合物的稳定性是由如下因素所决定的,即:统计效应,静电效应,共价键性,立体效应和配体的合作效应。

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。