酸基

To investigate the influence of environmental factors on cysteine of hair surface.

研究环境因素对头发表面半胱氨酸残基影响。

It is a member of a large family of proteins characterized by two conserved domains and a set of 16 conserved cysteine residues.

它是一个庞大的蛋白家族的一员，这个蛋白家族有两个保守区域和16个保守的半胱氨酸残基。

We studied the cysteine modification of RMCK and measured the kinetic aggregation process of the enzyme.

研究了RMCK的半胱氨酸残基修饰后的聚沉动力学过程。

These skew reflect mainly those in protein coding sequences, which are driven by asymmetric mutation pressures during replication and transcription (notably asymmetric cytosine deamination) plus subsequent selection for preferred structures, signals, amino acid or codons.

这些不对称性主要反应在蛋白质编码序列上，并且主要是受到复制与转录期间复制双股之间的不对称突变压力加上之后为了偏好的结构、信号、胺基酸或转录子的筛选所驱使。

Dodecyl and OrchidComplexOS (decane base / Octyl triglycerides and Cymbidium plant extracts).

和OrchidComplexOS（癸基/酯甘油三酸脂和大花蕙兰植物提取物）。

To better understand the principles of enzymatic unhairing, changes of contents of protein, hydro-proline and glucose in depilatory liquors were determined in Lowery method, DMBA method and Sulfuric Acid-Anthrone method, respectively, during bath dehairing procedure of 2709 proteinase and A.

为更好地理解酶脱毛的机理，本文用Lowery法、对二甲胺基苯甲醛法和硫酸－蒽酮法分别测定了2709酶和A.S1398酶有温有浴酶脱毛过程溶液中的总蛋白、羟脯氨酸及糖含量的变化。

The cis novel bisoxazoline ligands L1-L4 have been synthesized through the treatment of new cis dihydroxy diamide with p-toluenesulfonyl chloride in the presence of catalytic quantity of 4--pyridine, and the cis dihydroxy diamide could be achieved from the condensation of the amino alcohols and cis cyclopropane dicarbonyl chloride prepared via oxidation and halogenation from cis-2,2-dimethyl-3-formylcyclopropanecarboxylate with DCC.

我们以蒈醛酸内酯为起始原料，经过氧化反应、酰氯化反应得到顺式环丙烷二酰氯，然后在二环己基碳二亚胺的催化下与相应的氨基醇反应合成了顺式二羟基酰胺，再用对甲苯磺酰氯将羟基活化，最后在二甲氨基吡啶的催化下关环合成顺式双噁唑啉配体L1～L4。

The resultant was hydrogenised to remove protective group of amino group, then the product was reacted with NaNO2 to give diazonium salt, which was conjugated with salicylic acid, hydroxybenzene, N-salicyloyl glycine acid to get azo derivatives of 4-ASA.

本文首先对4-ASA的氨基和羟基进行了选择性保护，通过氢化还原法选择性脱除氨基的保护基，然后将氢化产物制成重氮盐，通过与水杨酸、苯酚和水杨酰甘氨酸发生反应生成4-ASA的偶氮衍生物，最后在碱性条件下水解得到最终产物。

The course will start with an overview of the central and peripheral nervous systems, the development of their structure and major divisions. The major functional components of the CNS will then be reviewed individually. Topography, functional distribution of nerve cell bodies, ascending and descending tracts in the spinal cord. Brainstem organization and functional components, including cranial nerve nuclei, ascending / descending pathways, amine-containing cells, structure and information flow in the cerebellar and vestibular systems. Distribution of the cranial nerves, resolution of their skeletal and branchial arch components. Functional divisions of the Diencephalon and Telencephalon. The course will then continue with how these various CNS pieces and parts work together.

这门课将会从中枢和周边神经系统构造的发展和主要的分化点来概述，中枢神经系统的主要功能将会在复习中个别地说明：神经细胞体的断层以及功能性的分布、脊髓内上升和下降神经束的特征学和功能分布；脑干组织和功能要素，包括脑神经核、上升和下降神经束走向、含胺基酸脑激素细胞的分布、小脑和内耳前庭系统的构造和资讯传导流；颅神经的分布、骨弓和腮弓的演化；间脑和终脑的功能与分类；这门课将会探讨这些不同的中枢神经系统如何一起作用。

The effect of crosslinking agent dicumyl peroxide and co- crosslinking agent triallyl isocyanurate on the cure and tensile properties of liquid ethylene propylene diene monomer was investigated.

研究了由过氧化二异丙苯和助交联剂三烯丙基异氰脲酸酯组成的过氧化物体系对液体三元乙丙橡胶的交联及产物拉伸性能的影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。