查询词典 second derivative

The second derivative, they say, is turning positive.

他们说，二阶导数或将为正。

At the same time, the author studies the jump of the second derivative at the knots.The paper is arranged as follows.

同时，本文对插值函数的二阶导数在节点处的跳跃问题也进行了深入地分析。

The time rate of change of concentration is proportional to the second derivative of concentration.

浓度对时间的变化率成正与浓度对距离的二阶导数。这种关系被用于描述非稳定态扩散。

The second derivative of f with respect to x.

f对x的二阶导数。

Second derivative spectroscopy was used for experimental observation.

用二阶导数光谱法进行试验观察。

Image for the differential procedures, including the differential horizontal and vertical differential once, such as second derivative.

求图像的微分程序，包括横向微分，纵向微分，一次，二次微分等。

It is a new method that calculates vertical second derivative of gravity anomalies based on discrete cosine transform.

基于离散余弦变换(DCT， Discrete Cosine Transform)的重力异常垂向二阶导数的计算方法，是笔者提出的新方法。

The second derivative of LNA, DHA is the most prevalent fat in the brain and nervous system.

DHA是由LNA转化的另一种衍生物，人体脑部和神经系统都含大量DHA。

The fluorescence spectrums of normal person and patients with bladder cancer were collected from 510 nm to 630 nm,and the second derivative spectrums were used to process data.

在510-630 nm 范围内采集健康人和膀胱癌患者尿样的荧光光谱，利用小波变换的方法进行数据处理。

The fluorescence spectrums of normal and diabetic urine were collected from 510 nm to 620 nm , the second derivative spectrums were used to process data.

在510 nm～620 nm范围内采集健康人和糖尿病患者尿样的荧光光谱，利用求二阶导数光谱的方法进行数据处理。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。