酸基

RESULTS:The diffusive rate of diclofenac sodium from the two kinds of hydrophilic polymer gel was higher than that of diclofenac acid.

结果：在亲水的高分子凝胶基质中，离子形式的双氯芬酸钠扩散速率大于分子形成的扩散速率。

Efficacy: it can effectively discompose melanin, inhibit tyrosinase activity, cut off root of melanin generation, deep whiten and nourish skin, remove sallow and dull skin, present whitening and crystalline skin, resist oxidation and remove free radical, promote substrate cells'regeneration and splitting, promote elastic fiber and collagen fiber growth, and resume skin elasticity and luster.

功效：有效分解黑色素，抑制酪氨酸酶的活性，切断黑色素生成的根源，深层美白营养肌肤，去除黄气暗哑，绽放肌肤净白莹采，抗氧化清除自由基，刺激基底层细胞再生分裂，促进弹力纤维和胶原纤维生长，重现肌肤弹性和光泽，玫瑰精油源源不断供给肌肤充足的水分和营养，深度改善细纹和干燥现象，改善肤色，给肌肤前所未有的白皙亮泽。

Polyfluoroalkyl iodides could react with unsaturated olefin acids in the presence of sodium dithionite by radical addition to give adducts. It was found that these adducts could form polyfluoroalkyl substituted γ or δ-lactones due to intramolecular nucleophilic substitution in the alkali solution.

研究发现：多氟烷基碘化物在连二亚硫酸钠存在下与不饱和烯酸经自由基加成得到的产物，能在碱性条件下进行分子内亲核取代反应形成五元或六元环的含氟内酯类化合物。

Results showed that people with high anxiety displayed a different and distinct metabolic profile, including hormonal metabolism for adrenaline, DOPA, and 3-methoxy-tyrosine and activity of gut microbiota metabolism, than people with a low anxiety trait.

结果显示，高焦虑人群呈现特别明显的代谢状态，包括肾上腺素的代谢， DOPA ，和3-甲氧基-酪氨酸，以及肠胃微生物代谢，都不同于低焦虑特质人群。

The peptide bond has partial double bond character and is nearly always in the trans configuration.

半胱氨酸残基之间共价二硫键的位置也包括在一级结构之中。

The 3propanesulphonic acid was separated by cationic exchange resin,and its content was determined with electrometric titration .

先用离子交换树脂处理合成3-丙基磺酸的反应液，再用电位滴定法准确定量产物MOPS。

The cycle of the eluviation can be shortened even without acidific.

试验首次证实，硫酸亚铁盐作基质时在曝气条件下可以不需预酸化，也可以达到较好的处理效果。

Objective To explore the invading mechanism of amebae in lamina porpria and observe the interaction between the cysteine proteinase of Entamoeba histolytica and laminin.

目的 探索溶组织内阿米巴通过基底膜进入固有膜的机制，了解其半胱氨酸蛋白酶(cysteine pro-teinase，CP)与胞外基质的相互作用。

Determination of the equilibrium constant of a coordinated compound.

四、铁离子与磺基水扬酸配合物的组成和标准稳定常数的测定，了解用比色法测定配合物的组成和配离子稳定常数的原理和方法，掌握分光光度计的使用及有关试验数据的处理方法。

To investigate the pollution levels, occurrence and distribution of estrogens, six estrogens in the surface sediments of Wenyuhe River were analyzed quantitatively by GC/MS following ultrasonicated extraction including diethylstilbestrol, estrone(E1),β-estradiol(E2), 17α-ethynylestradiol(EE2), estriol(E3), and β-estradiol 17-valerate. Six estrogen concentrations ranged from 0.39-36.6ng/g and the mean concentration was 10.2ng/g.

为了调查温榆河沉积物中雌激素物质的污染状况，采用超声萃取、GC/MS法研究了6种常用雌激素（包括己烯雌酚DES、雌酮E1、雌二醇E2、乙炔基雌二醇EE2、雌三醇E3和戊酸雌二醇EV）在北京温榆河上游及干流表层沉积物中的含量水平，并对其分布及来源情况进行了分析。

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。