查询词典 D.A.

Oh, you mean vitamins A and D. I've heard about that.

哦，你是说维他命A和D吧，我听说过。

Oh, you mean vitamins A and D.

噢，你说的是维生素 A 和 D 吗？

Circuit system used varistor constitute the Wheatstone bridge to collect small changes in voltage, After amplification circuit amplified into A / D converter circuit, the input voltage digital signal after the conversion output AT89S52 conducted by the control and data processing and results in the LCD display.

系统电路采用压敏电阻构成惠斯登电桥来采集电压的微小变化，经过放大电路放大后送入A/D转换电路，对输入电压信号进行数字量的转换后输出，由AT89S52进行系统的控制和对数据的处理并将结果显示在液晶显示器上。

Note. A walkover without a noticeable stop in the splits position (22 D) counts only as an acrobatic element.

注：一个软翻在分腿的动作中没有一个明显的停顿（22 D）被认为仅仅是一个特技动作。

Started from D-tyrosine, we obtained the tetramic acid 96 using Jouin reaction. The assembly of the second fragment 109 was stared from 1,4-butandiol,using asymmetric alkylation reaction developed by Oppolzer as a key step. Coupling of the tetramic acid 96 with 109 provided the key intermediate 110 according to Yoshii\'s procedure. After remove protective group and Sharpless epoxidation, we obtained the key intermediate 113. Its macrocyclization to form the final product is in progress.

本论文的第二章主要对Macrocidin A开展了合成工作，我们从D构型的酪氨酸出发，经过官能团转换；利用Jouin反应生成Tetramic acid 96，另外一个片断从1，4-丁二醇开始经过多步反应生成碘化物104，利用Oppolzer发展的手性樟脑磺酰胺为辅基参与的不对称烷基化反应，引入手性甲基，生成关键中间体109，接着通过Yoshii发展的方法连接96和109生成110，经过Sharpless不对称环氧化反应建立环氧化合物，然后脱去保护基得到关环前体113，分子内的Mitsunobu反应进行关大环反应正在进行之中。

The PPDPsec, which is the prediction method of protein secondary structure based on D-PBIL algorithm, is a new attempt in predicting protein secondary structure from the position of abiological statistic and is a method of single sequence.

而基于D-PBIL算法的蛋白质二级结构预测方法——PPDPsec，则是一种从非生物的统计角度来进行二级结构预测的新尝试，它是一种单序列预测方法。

Methods: the first experiment Immunetolerance in mice sciatic nerve allograft by intrathymic injection of allogene: 48 mice were divided into 4 groups randomly: Group A,Group B, Group C and Group D(nerve allograft under immunosurppressant).

研究技术路线：第一部分：小鼠胸腺内注射异基因抗原在同种异体坐骨神经移植免疫耐受中的作用 1、动物分组：48只Balb／c小鼠随机分为4组，A组；B组；C组；D组(异体神经移植加用免疫抑制剂组)。

The invention relates to the synthesis of N-aryl group-3-(4-Beta-D-pyran allose glycoside phenyl)-5-formyl isoxazole-4-formamide and discloses a helicid derivative which can improve the functions of a central nervous system and the preparation method thereof; wherein, the compound has good sedative, hypnotic and anti-convulsant effects and is taken in the 2000 edition Chinese Pharmacopoeia with the drug name of helicid tablets.

N-芳基-3-(4-β-D-吡喃阿洛糖苷苯基)-5-甲酰基异唑-4-甲酰胺的合成，发明公开了具有改善中枢神经系统功能的豆腐果苷类衍生物，及其制备方法。该类化合物具有良好的镇静、安眠、抗惊厥作用。目前已以药品名&神衰果素片&被收入2000年版《中国药典》。

Experienced a six-month low-key ready, century-old shop in Chongqing, Kowloon, Hong Kong warehouse built "Time Ambassy Court" once again attracted the attention of the city of Chongqing Housing: ending for D-dong Chingtien Court to end up out of the ordinary momentum , in a short span of three days, the sales exceeded 200 million yuan.

经历了6个月低调准备，百年老铺在重庆，香港九龙仓建立&时间鸿艺豪苑&再次引起了重庆市房屋：结束的D洞擎天法院结束出普通的势头，在短短的3天，销售超过200万元。仅列举

The infusion of DADLE, a δ-opioid receptor agonist, produced a dose-dependent increase of ARNA without affecting renal pelvic substance P release, urine flow rate, and urinary sodium excretion.

此外，从肾盂灌注类鸦片致效剂DADLE([D-Ala2， D-Leu5]-enkephalin)，则会有一浓度依存性的增加ARNA的活性，但却不会影响肾盂内物质P的释放及对侧肾脏尿液流速(urine flow rate， UV)和钠离子排泄率(urinary sodium excretion， UNaV)；而此ARNA的增加并不会因预先给予NK-1受体拮抗剂spantide I (0.1mg/ml， 20μl/min)而有所减少。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。