查询词典 first derivative

Continuity on first derivative of wave function is discussed by means of several instances of finite and infinite transition s of potential function and hereby continuity conditions is pinpointed.

结合势函数有限跃变和无限跃变的几种实例，讨论波函数一阶导数在势函数跃变处的连续性问题，从而进一步明确连续性条件。

Design parameter based on finite element model updating is part of an inverse problem of structure dynamics. Features of the structure are used as a function of design parameters. Parameters are updated based on the first derivative. This paper presents a new method which treats the model updating as a positive problem.

设计参数型有限元模型修正属於结构动力学反问题，其理论基础是将结构的特徵量视为设计参数的函数，然后依据特徵量对设计参数的一阶导数信息进行迭代求解。

Thus, once we have the first derivative, we get all higher derivatives free.

因此，一经我们有那第一的引出，我们免费获得所有的较高的引出之物。

Two kinds of methods to estimate the first derivative of rotating angle in the cracked section are presented.

针对J〓积分中的裂纹韧带曲率的计算问题，给出了两种简单的计算方法，即等截面梁估算法和椭圆边界变截面梁估算法。

The solution and positive solutions are considered for a class of nonlinear fourth-order beam equations with first derivative.

考察了一类含有一阶导数的非线性四阶梁方程的解和正解。

In mathematical terms, the marginal physical product is given by the first derivative of the production function, ie.

用数学的术语来表示，边际产量是生产函数的一阶导数，即

The results show that the first derivative curves of weight loss could be described as an overlap of six Gauss peaks.

结果表明，生物油燃烧的失重速率曲线可以描述为6个高斯函数峰的叠加。

A mark used as a superscript to indicate the first derivative of a variable .

撇号置于右上角的符号，用以标明变量的第一个导数

A Use the first derivative to find the critical points and to find out where the graph is increasing and decreasing.

利用函数的一阶导数找出图形的临界点，判断图形的增减性

Two/the first derivative of f with respect to x equals two.

Re： 急问：表示微分的f'的那个小'号用英语怎么读？

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。