查询词典 asymmetric

In this paper, asymmetric synthesis of oxidation reaction of achiral isophorone influenced by artificial centrifugal force field was studied. The reaction system was characterized by UV, Infrared and Circular dichroism.

本文通过紫外、红外和圆二色光谱表征考察了外在离心力场对非手性化合物异佛尔酮不对称氧化生成光学活性产物的影响。

The chaotic attitude motion of an asymmetric satellite moving on a Keplerian orbit in the central gravitational field was discussed. The Hamiltonian function of the system can be expressed by using Serret-Andoyer variables.

基於土星卫星上所观察到的混沌运动，研究了中心引力场中Kepler椭圆轨道上非对称卫星的姿态运动，其系统的Hamilton函数可用Serret-Andoyer变量写出。

Results the follow-up was 1～12months, and the eyebrows and angulus oculi lateralis of patients were promoted obviously, and the operation incisions recovered well without scarring alopecia and asymmetric temple.

结果：经手术后1～12月的观察，患者的眉、外眦上提效果明显，减少瘢痕性秃发和鬓角不对称并发症出现。

There were two great fluctuations and the stock returns were fluctuated,non-asymmetric and leptokurtic,being stable under 10%,5% and 1%.

股价收益率具有显著的波动集聚性，且表现出&尖峰、厚尾、非正态&的特征，在10%、5%、1%临界值水平下均存在显著的平稳性。

ObjectiveTo solve the infection of asymmetric absorption peak in determination of flavonoids in lithocarpus polysachyus rehd leaves.

目的清除由于多穗柯叶中黄酮光谱吸收峰不对称给定量分析造成的影响。

ObjectiveTo solve the infection of asymmetric absorption peak in determination of flavonoids in lithocarpus polysachyus rehd leaves.

黄酮类化合物；，，多穗柯；，，三波长分光光度法摘要：目的清除由于多穗柯叶中黄酮光谱吸收峰不对称给定量分析造成的影响。

This study not only analyzes asymmetry of monetary policy effects longitudinally,but also analyzes asymmetric effects horizontally.

不但分析了货币政策效果纵向上的非对称，也分析了横向效果上的非对称。

Ee were achieved in the Pd (0)-catalyzed asymmetric reaction of racemic 1, 3-dipheylprop-2-en-1-yl acetate with dimethyl malonate under the optimized reaction conditions.

在钯催化的乙酸1，3-二苯基烯丙基酯与丙二酸二甲酯的不对称反应中，取得了接近定量的收率和较好的对映选择性（71.2％ee）。

The asymmetric synthesis of mandelic acid in the presence of a chiral phase transfer catalyst was also studied.

本文研究了由苯甲醛和卤仿在相转移催化条件下合成扁桃酸的工艺，探讨了反应条件，特别是相转移催化剂的种类对反应的影响。

The role of DDAH is to break down modified amino acids Asymmetric dimethylarginine (ADMA and monomethyl arginine that are produced by the body and have been shown to inhibit NO synthase.

DDAH的作用是破坏由体内产生的被修饰的氨基酸（不对称的二甲基精氨酸和一甲基精氨酸）并已证实它可以抑制NO的合成。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失