查询词典 harmonic function

Because the harmonic is harmful to the electric net and electrical equipment, it is very important to measure the harmonic accurately and restrain it. Some methods for harmonics measurement are proposed in these years.

由于谐波对电网及用电设备有诸多危害，准确测量谐波及抑制谐波就显得尤为重要。

Use the Rogowski coil as the sensor and transmit the signal and energy with the optic fibre, analyse the principle of the measurement of harmonic current in HVDC system and the factors of its measurement of influence by opticelectricity and computer technology. The Rogowski coil is used to measure the harmonic current in HVDC system. It doesnot affect by direct current and has good frequency characteristics.

本文在全面分析高压直流谐波电流测量方法的基础上，确定以空心线圈为传感器，以光纤传输信号和能量，结合光电技术、微计算机技术，系统地分析了谐波电流测量系统的工作原理及影响其测量的多种因素，提出了解决问题的具体方法和措施。

Based on this system, harmonic and subharmonic periodic response of S-LF subjected to harmonic motion is investigated by using Floquet theory.

并给出了这种结构的最大滑动位移响应随滑移面摩擦系数的变化曲线，可供设计时参考。

Loser here is the frequency spectrum of the distribution curve, complex oscillation amplitude is decomposed into different frequency and different harmonic oscillation, the oscillation amplitude harmonic frequencies arranged in accordance with the graphics is called the spectrum.

在这里输频谱就是频率的分布曲线，复杂振荡分解为振幅不同和频率不同的谐振荡，这些谐振荡的幅值按频率排列的的图形叫做频谱。

It focuses on examining the subjects' abilities to find tonality and mode, perceive tendency of melodic pitches and harmonic functional progression, and recognize meter and segment the groups of rhythm. We can thus consider whether or not receiving harmonic training has an influence on recognizing meter and segment groups of rhythm.

它包含调式调性的确定、旋律音高的倾向、和声的功能解决、拍号的识别以及节奏组合的划分等测验项目，实验结果表明，师范类音乐专业大学生对调性音乐音高层面基本组合规则的感知能力不存在统计意义上的差异；是否学过和声对个体把握音乐在时间层面的基本组合规则具有影响作用。

Mass transit ; harmonic ; harmonic analysis ; voltage distortion ratio

城市轨道车辆；谐波；谐波分析；电压畸变率

A set of FTD harmonic drive with transmission ratio 100 and involute tooth profile is development by using the method presented in this dissertation, and by the meshing law experiment and the kinetic accuracy comparison experiments between two kinds of harmonic drive, the correctness of relative theory in this dissertation is testified further.

利用本文提出的方法，成功地研制出具有渐开线齿廓、传动比为100的四齿差谐波齿轮传动装置，通过对其啮合规律的测试和两种谐波齿轮传动运动精度的对比实验，进一步证实了本文有关理论、方法的正确性。

The dependence of the harmonic generation on the parameters of laser and plasma are systematically analyzed. Some discussion on the pathway to improve the ratio of the harmonic power to the pump laser is given.

首次研究了超强激光在电子-正电子等离子体中激发的相对论相干谐波辐射，发现其特性强烈依赖于准静态的外加磁场或自生磁场。

In the HVDC engineering, it will produce a series of harmonic which than the fundamental frequency of power grid, and the harmonic have adverse effects with the power systems, equipment and power grids.

中文摘要：摘要：在高压直流输电工程中会产生一系列大于电网基波频率的谐波，而谐波的存在会对电力系统、设备及电网造成不良影响。

With the idea of finite approximation, we study a new solution method for the satellite altimetry problem. Our result shows that if the continental part of the earth is sphere cap, then the solution of satellite altimetry problem can be transformed into a linear system of equations with variants of the coefficients of spherical harmonic series. We prove that the linear system of equations is separated about the orders of spherical harmonic series.

研究了球界面下卫星测高问题的解法，利用有限逼近方法得到了下列结论：若陆地部分是球冠，则卫星测高问题的解可以转换成关于球谐级数位系数的线性方程组，并且位系数的阶和次是以分离形式出现的，从而确保该解法具有实用意义。

A backer of an Afghan law that critics say legalizes marital rape has rejected the international outcry as foreign meddling.

饱受批评的一项法律的拥护者说合法化的婚内暴力不会受国际舆论的干涉。

Years ago, a ancient Egyptian fleet went to the Land of punt for seeking a kind of flavor named "myrrh", and aromatic plants which has dense exotic style for the queen Hatshepsut.

3500年前的一个古埃及的舰队到&彭特之地&寻找一种叫没药的香料。