一阶

The vibration is varied in frequency over a range on the order of 5 to 2, 000 cps, usually at a constant octave

振动的频率在5到2000赫的范围内变化，通常用一常值的八阶变化率。

Crake is also the only person to run up the 86 flights -- 1,576 steps -- of the Empire State Building in under 10 minutes.

Crake 也是唯一在十分钟内登上帝国大厦的人，帝国大厦有八十六层，共一千五百七十六阶。

For acquiring the mean line of workpiece profile,a new kind of digital smoothing filter based on cubic generalized spline function was proposed.

为了提取工件表面轮廓中线，给出了一种基于三阶广义B样条函数的数字光滑滤波器。

It is a generalization of the nonlinear diffusion equation proposed by Perona-Malik and the method presented by Cuesta, and interpolates between the nonlinear parabolic equation and the nonlinear hyperbolic equation, thus can effectively control the diffusion process so that noises can be removed and details of the image such as edges can be preserved as much as possible simultaneously.

提出了一种包含对时间的分数阶导数的非线性扩散方程，它是对Perona-Malik的非线性扩散方程和Cuesta提出的方程的推广，介于非线性抛物方程和非线性双曲方程之间，从而能有效地控制扩散过程，使得在去除图像噪声的同时能够尽可能地保留图像的边缘等细节信息。

A method of the source number estimation is proposed based on the fourth order cumulant information.

提出了一种基于阵列输出4阶累积量信息的信源数目估计方法。

In order to detect moving infrared dim and small target, a novel high-order cumulant projection algorithm was proposed.

为检测弱小红外运动目标，提出了一种基于高阶累积量投影的检测算法。

The application of high-order cumulant can resolve this problem.

高阶累积量在信号处理领域的应用为这一问题提供了新的处理工具。

Based on Hilbert transform and cumulant,this paper proposes a new method named HBSTCH-SVD-TLS.

本文基于希尔伯特变换和高阶累积量提出了一种新方法：HBSTCH－SVD－TLS。

A new method of DOA estimation is presented based on higher-order cumulant.

该文提出了一种基于高阶累积量虚拟阵列扩展的DOA估计新方法。

A new algorithm based on third-order cumulant was proposed to detect a moving dim infrared target under heavy background.

为检测强杂波背景中的红外弱小运动目标，提出了一种基于三阶累积量的检测新方法。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。