查询词典 derivative

The invention relates to a preparation method of chiral alpha-alkenyl-alpha'-alkyl piperidine and relative N-Cbz derivative and an application.

本发明涉及一种手性α-烯基-α'-烷基哌啶及其N-Cbz衍生物的制备方法和应用。

He has not been an innovator in technology--in polite circles, we would c all him derivative; in less genteel terms, we would call him a plagiarist.

以客 气点的方式来说，我们可将他称作技术'推广者'；如果用不客气的方式，那他就是技术'剽窃者'。

Does that make it harder to scale a platform into derivative systems?

这样做是否会使平台扩展为衍生系统变得困难？

Results By using containing ethanol-2mol·L -1 lithium chloride-water(2∶1∶5)solution,there is a very good secondary derivative differential pulse polarogram peak at -1.703 V.

结果 ：秦皮甲素在乙醇- 2mol·L- 1 氯化锂-水(2∶1∶5 )的底液中，于- 1.70 3V处出现一良好的二阶导数差示脉冲极谱法峰，其峰幅值与秦皮甲素在 0 。2～ 1.6mmol·L- 1 范围内呈良好的线性关系(r =0 。9998)，检测限为 5 0nmol·L- 1 。

The secondary derivative differential pulse polarography was developed for the quantitative determination of chrysophanol in rheum.

建立了中草药大黄中大黄酚的二阶导数差示脉冲极谱定量分析方法。

Studies on quantitative determination of active principles in Chinese herbal medicine by second derivative differential pulse polarography.

二阶导数差示脉冲极谱法的建立及在药物分析中的应用。药学学报，1992，27(2)：157。[4] 梁云爱，李见春，门孝英。环磷酰胺及其制剂的二阶导数差示脉冲极谱法定量研究。

Interaction of Reactive Brilliant Red K-2G with Cyclodextrins was also studied by second order derivative Linear sweep polarography.

因此环糊精在农业、食品、医药、有机合成、环境保护、分析化学等众多领域得到了广泛的研究和应用[1，2]。

Therefore, the derivative of the moment relative to the angle ofattack is positive.

旋翼拉力线产生的扭矩使得旋翼攻角进一步增加。

A new catalytic kinetic method with second derivative oscillopolarography detection for determining trace amounts of NO〓〓 has been developed. The method is based on the catalytic oxidation of Amarath by potassium bromide in the diluted H〓SO〓. The detection limit of the method is 2.8×10〓g/ml, the linear range of the determination 〓is 0.6～14ng/ml for NO〓.

首次研究了鸡冠红的示波极谱行为，并发现NO〓〓在稀硫酸介质中对KBrO〓氧化鸡冠红褪色反应具有强的催化作用，本文采用两阶导数示波极谱法作监测技术，测定了该催化体系的表观反应级数及动力学方程，建立了催化动力学伏安法测定痕量NO〓〓的新方法。

Limit, derivative, integral power series expansion, differential equation solving certain other.

求极限、导数、积分，幂级数展开，求解某些微分方程等。

Now she was hungry and angry.She began to smoulder.

现在她又饿又气，她开始流露难以抑制的怒火。

You have placed our iniquities before You, Our secret sins in the light of Your presence.

诗90：8 你将我们的罪孽摆在你面前、将我们的隐恶摆在你面光之中。