酮体

The third fluroquino is one kind of antibiotics which is often used in ophthalmology. It's antibacterial activity for Gram-negative bacteria is better than that for Gram-positive bacteria and it is the weakest for anaerobe and endo-pathogens.

第三代氟喹诺酮类药物是眼科常用的抗菌药物，它对革兰氏阴性菌有良好的抗菌活性，但对革兰氏阳性菌(如肺炎球菌、化脓性链球菌、肠球菌)的抗菌作用相对较弱，对厌氧菌和胞内病原体(衣原体、支原体、军团菌、分枝杆菌)作用较差。

The third fluroquino is one kind of antibiotics which is often used in ophthalmology. Its antibacterial activity for Gram-negative bacteria is better than that for Gram-positive bacteria and it is the weakest for anaerobe and endo-pathogens.

第三代氟喹诺酮类药物是眼科常用的抗菌药物，它对革兰氏阴性菌有良好的抗菌活性，但对革兰氏阳性菌(如肺炎球菌、化脓性链球菌、肠球菌)的抗菌作用相对较弱，对厌氧菌和胞内病原体(衣原体、支原体、军团菌、分枝杆菌)作用较差。

Three chiral phosphorus ligands were prepared using anisole as the startingat material.Their applications in the asymmetric hydroformylation and asymmetric conjug ed addition of diethylzinc to enones were investigated.

以苯甲醚为原料，合成了三种新的手性含磷配体，考察了三种配体在不对称氢甲酰化反应和ZnEt2对环己烯酮的不对称共轭加成反应中的应用。

We set up an orthogonal experiment, use diclofenac sodium as drug model, detect the pemeate velocity, lag time, and transit dose accumulated in 24 hours(Q24) as index of drug action of azone, menthol and camphol using together on skin of back of unde rat on the equipment of percutaneous absorption in vitro, evaluate the contribution of transdermal enhancers by Topsis.

在离体透皮吸收装置上，采用正交试验的设计方法研究不同浓度的氮酮、薄荷醇、冰片联用对双氯芬酸钠在离体裸小鼠背部皮肤上的透皮行为，以累积透过量、渗透速率和滞后时间为药效指标，运用Topsis法评价促透效果。

We set up an orthogonal experiment, use diclofenac sodium as drug model, detect the pemeate velocity, lag time, and transit dos e accumulated in 24 hours(Q24) as index of drug action of azone, menthol and camphol using together on skin of back of unde rat on the equipment of percutaneous absorption in vitro, evaluate the contribution of transdermal enhancers by Topsis.

在离体透皮吸收装置上，采用正交试验的设计方法研究不同浓度的氮酮、薄荷醇、冰片联用对双氯芬酸钠在离体裸小鼠背部皮肤上的透皮行为，以累积透过量、渗透速率和滞后时间为药效指标，运用Topsis法评价促透效果。

The total synthese three natural compounds to explore enantioselective synthesis of flavanol: We use phloroglucin and 2, 4, 6-trihydroxyacetophone as starting materials to synthesis distenin in two ways; Resorcin was used to synthsis 2, 5-dimethoxymethoxyacetophone though 3 steps.

对黄烷醇化合物的立体选择性全合成进行了探索：以间苯三酚和2，4，6-三羟基苯乙酮为原料，尝试用两条路线对Distenin化合物进行了全合成研究；以对苯二酚为原料，经三步制得2，5-二甲氧甲氧基苯乙酮，与2，4，6-三甲氧甲氧基苯甲醛反应，经四步反应得到天然产物3，5，7，2′，5′-二五羟基黄烷关键中间体1-（2′，6′-二甲氧甲氧基苯）-3-（2&，4&，6-三甲氧甲氧基苯）丙烷-1R，2R-二醇83及其对映体84；简要介绍了EGCg类化合物的生物活性和研究概况。

To observe the serum levels of thyroid hormones and sex hormones inmale patients with thyrotoxic hypokalemic periodic paralysis.

目的 观察男性甲亢性低钾周瘫患者血清甲状腺激素、黄体生成素、卵泡刺激素、催乳素、孕酮、总睾酮、雌二醇（E2）的水平变化。

The main by-product s and their separation and recovery technologies were discussed for cyclohexanone gas-phase Beckmann rearrangement.

探讨环己酮肟气相Beckmann重排主要副产物及其分离回收方法，研究1-氮杂-2-乙氧基-1-环庚烯、1，3，4，5-四氧吖庚因-2-酮及其同分异十句体等副产物回收利用生成已内酰胺的方法。

Monosaccharide Isomerization Simple aldoses and ketoses containing the same number of carbon atoms are isomers of each other; that is, a hexose and a hexulose both have the empirical formula (C6 H1206 )and can be interconverted by isomerization.

单糖异构化含有相同数目碳原子的单醛糖和酮糖互为同分异构体，也就是说一个已醛糖和一个已酮糖都符合经验分子式C6 H1206，并且可通过异构化作用相互转化

Part Ⅰ The Research of Chiral Phosphorus Catalysts in the Enantioselective Borane Reduction of Prochiral Ketones ABSTRACT In this paper, the preparation of varied types of chiral phosphorus ligands and their applications as catalysts in the asymmetric borane reduction of prochiral ketones were investigated.

第一部分对映选择的潜手性酮的硼烷还原反应中手性磷催化剂的研究本文研究了多种不同类型的手性磷配体催化剂的合成及其在酮的不对称硼烷还原反应中的应用。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。