查询词典 derivative

In this article,the synthesis method of Phenanthraquinone is discussed and five main methods are compared,such as the method of using biphenyl and derivative of diphenylethane and the method of Diels-Alder and rearrangement as well as the direct oxidation.

本文对菲醌的合成方法进行了综述并对其几种方法作了比较，其合成方法主要有以联苯及二苯乙烷衍生物为关键中间体的方法、以Diels-Alder及重排反应为关键步骤，以及直接氧化等五类合成方法。

With the introduction of the Bora Variant in the year 1999 the Bora series was broadened by a derivative.

随着宝来变在1999年的宝来系列的推出是扩大了衍生工具。

We apply not only the Bouguer gravity anomaly data but also the first derivative of the Bouguer gravity anomaly.

在应用布格重力异常数据的同时，还应用了布格重力异常一阶导数。

Without using Lie derivative and Lie bracket operation of differential geometry , we only use the algebra method to give a sufficient condition of single input exact feedback linearizable bilinear systems.

摘 要 研究了单输入的双线性系统的精确线性化及其鲁棒控制器设计问题，避免了用微分几何的李导数、李括号的复杂运算，只用纯代数的方法给出了一般单输入双线性系统精确线性化的充分条件。

The derivative expression of branch energy function is deduced, which is constituted by components of each line by its own.

推导了基于支路能量函数法的能量函数导数的表达式，分别由各支路的分量表示。

A novel method for the determination of trace bromate in water is proposed which employ GC-ECD. The derivative process with acetylacetone is optimized.

研究了用GC-ECD测定水中痕量溴酸盐浓度的方法，优化了用工程丙酮作溴酸根衍生化试剂的反应条件。

Objective To investigate the effect of butyric acid and its derivative tributyrin in combination with all-trans retinoic acid on differentiation induction of APL cells.

目的 研究丁酸类衍生物联合维甲酸对急性早幼粒细胞白血病患者原代培养细胞的诱导分化作用。

Stochastic differential equations can be used to resolving the price of interest rate derivatives. It has a canonical equation of interest rate changing with time and its derivative accords with the traded behavior in finance market, but the resolving process is very fussy and difficult and can not receive closed solution in many cases.

随机微分方程被用于利率衍生产品的定价，它给出利率随时间变动的一个规范的方程，而且其推导过程与金融市场中的交易行为一致，但其求解过程很繁琐且困难，在很多情况下甚至无法得到封闭解。

However, it is very toxic. Nocantharidin, a derivative of cantharidin first synthesized in China, is a new anti-tumor drug with strong anti-tumor activities and increases the number of while blood cells.

去甲基斑蝥素(noncantharidion， NCTD)为斑蝥素的衍生物，是我国首先合成的具有较强抗肿瘤活性和独特升高白细胞作用的新型抗肿瘤药物。

Objective To investigate the effects of clausenamide derivative on carbon tetrachloride (CCl4) and Dgalactosamine induced acute liver injury in mice.

目的 观察合成的4苯基卤代黄皮酰胺衍生物对四氯化碳(CCl4)和D半乳糖致小鼠急性肝损伤的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。