查询词典 steric

Can be used as paint filler, with fine, uniform, high brightness, and good optical properties, nano-calcium carbonate with steric effects of the paints to make this recipe in a larger density of suspended lithopone, since anti - sedimentation.

可作为颜料填充剂，具有细腻、均匀、白度高、光学性能好等优点，纳米碳酸钙具空间位阻效应，在制漆中，能使配方中密度较大的立德粉悬浮，起防沉降作用。

Additionally, the artificial nuclease was linked with nanoparticle and the steric effect of Au collide to the PCR was researched.

此外，我们试图将人工核酸酶和纳米粒子进行连接制成人工核酸酶，进行了纳米粒子和OligoDNA的连接和PCR的初步研究。

The results showed that the biological activities are closely related to the steric conformation and distribution of electrostatic potential of carboxyl group: The coplanatity between the group of C-3 position and the parent nucleus and the coplanatity between the group of C-3 position and C-4 keto group are very important for biological activities.

结果发现该类药物的抗菌活性与C 3位的空间构象和静电势分布有着紧密的联系。C-3位羧基与C-4位酮基共面性、以及它和母核共面性对抗菌活性十分重要，C-3位两个氧原子周围较强的负静电势也是影响活性的重要因素。

The partial substitution of acids on the triazole-ring of polymer 10 may arise from difference in acid strengths or from varying degrees of steric hinderance during protonation reactions.

在酸部分取代对三氮唑聚合物10环可能产生的酸强度的差异，或从不同的反应过程中的质子立体阻度。

Importantly, the significant steric and electronic effects of the reductant aldehydes were for the first time disclosed systematically.

在此反应的研究中，首次较为规律性地揭示了还原剂醛的空间位阻效应和电子效应。

It may be due to the following two reasons: 1 High steric hindrance caused by rigid structure of substituted fluorenone preventsthe approach of the chiral reductor;2 The prochiral center is, moreover, linked to two coplanar aromatic rings, which due to strong conjugation are highly electronically similar and thus it becomes extremely difficult to distinguish between them.

主要是以下两个原因：1取代芴酮的刚性结构产生高的空间位阻，阻止了手性催化剂的接近；2潜手性中心旁的两个芳香环不仅立体构型非常相似，而且高度的电子相似，很难被手性配体识别。

From the results, it could be further concluded that the electric repulsive force was the main factor of the dispersion mechanism of FDN, while the steric repulsive force could not be neglected in the dispersion mechanisms of LS, GCL1-T and ASP.

由测定结果可进一步推断，FDN的分散机理以静电斥力效应为主；而空间位阻效应在LS、GCL1-T和ASP的分散机理中不可忽略。

A1l the thick adsorption layer,large space steric hindrance,thick solvate layer and stable ξ-potential of ASP adsorbed on cement particles resist the flocculation of cement particles.In addition the early stage hydration of cement is restrained because the—OH ,—NH2 in ASP can suppress the formation of hydrated products such as C-S-H ,Ca2 and ettringite crystals through forming unstable complex compound with Ca2+.So ASP has excellent plasticity-retention capability of concrete.

由于ASP在水泥颗粒表面的吸附层较厚、空间位阻较大、溶剂化层较厚及ξ-电位较稳定等原因，阻碍了水泥颗粒间的凝聚；同时由于ASP含有的—OH，—NH2等官能团与水化产生的Ca2+形成不稳定的络合物，抑制了水化产物C-S-H，Ca2和钙矾石等结晶体的形成，从而抑制了水泥的早期水化，故ASP具有良好的保塑性能。

With the size of alcohol ROH increasing, space steric block made solvolysis activity of propylene oxide decrease.

空间位阻的变化，使得环氧丙烷溶剂解反应活性随着醇类溶剂的分子增大而减小。

Apply tetrachloroethylene to handle carbon black by hot machine method,because of the active double bond of Tetrachloroethylene and the space steric effect of chloride ion.

炭黑在橡胶中的分散状态和分散难易程度，是关系到混炼胶质量高低的关键因素。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。