查询词典 approximate partial derivative

It was discovered in the late nineteenth century as a derivative of toluene (a solvent derived from coal tar).

它是于十九世纪后期作为甲苯（一种煤焦油的可溶的衍生物）的一种衍生物被人发现的。

What do you think was the main cause of the COE's derivative losses?

你认为央企衍生品亏损的主要原因是什么？

The derivative of the composite function is the product of the derivatives of the components.

复合函数的导数是构成函数的导数之积。

The first and second derivative plates of concave pressure build-up curve are presented in this paper.

本文提出了凹型压力恢复曲线的一阶导数图版和二阶导数图版。

The observed pressure derivative curve shows a concave shaped curve like a dual porosity behavior, but the curve never reaches the second flat state.

观察到压力导数曲线呈凹状曲线就像一个双重介质行为，但该曲线从未到达的第二个单位。

Inequality proof of various ways, they were: use derivative testify inequality nature, Includes using functional monotonicity and extreme value, the function and the concave and convex inequality, proving is concave and convex function in the original definition of equivalent definitions and a lemma is proposed on the basis of relevant concave and convex function of several theorems about inequality, and briefly discusses how to use the definitions and theorems in proof of inequality.

不等式的证明方法多种多样，它们分别是：用导数性质证明不等式；包括利用函数单调性，极值与最值，函数凹凸性证明不等式，其中在给出凹凸函数原始定义等价的解析定义和一个引理的基础上提出有关凹凸函数关于不等式的几个定理，并简要阐述了利用定义和定理在证明不等式中的运用。

Theorem A.If the density function fhas the first derivative andlogfis a concave function,the MLE of〓for the two-sample location modelPL uniquely exists.

定理A。若密度函数f具有一阶导数并且logf是严格的凹函数，则对于双子样位置参数模型在PL的限制下，〓的MLE唯一存在。

Theorem C.If the density function fhas the second derivative andlogfis a concave function,the MLE of〓for two-sample scale model PSuniquely exists.

定理C。若密度函数f具有二阶导数并且logf是严格凹函数，则对于双子样尺度参数模型在PS条件限制下，〓的MLE唯一存在。

A conditional expression model, in which the target gene is deleted in the presence of a tetracycline derivative, was used to delete the VEGF gene from podocytes.

一个有条件的表达模型用来从足突细胞中删除VEGF基因，在四环素衍生物的出现下靶基因被删除。

The second time derivative is the constant acceleration.

它的二阶导数就是这个恒加速度。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48