steric的例句大全

The effect of solvents and steric hindrance 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.

D 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.

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 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.

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.

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.

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.

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.

These parameters represented the influence steric effect on BDEs.

这些几何参数表征了位阻效应对键离解能产生的影响.

Objective To explore steric morphological constructions of acupoints and provide correlative fine morphological image of acupoints.

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.

Nevertheless , steric hindrance caused by chemical structure reduces the retention time.

药品化学结构引起之立体障碍会降低滞留时间.

The polycarboxylate polymer is an environment-friendly dispersant, which is the carbon chain length, activated adsorption points, steric stabilization and more types of monomer to choose.

聚羧酸系高分子分散剂是一种环保型的分散剂，由于碳链长、活性吸附点多、空间位阻作用稳定以及可供选择的单体种类多等优点，越来越受到人们的关注。

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。

Compared with straight chain phosphites, caged bicyclic phosphites have great differences in nucleophilic reactions due to the tension and high steric hindrance caused by the caged bicyclic structure.

双环笼状亚磷酸酯类衍生物由于其笼状结构所引起的张力及高位阻性，使得它同一般直链亚磷酸酯类化合物相比，在亲核取代反应性等方面有着明显的不同。