1) Duct
[英][dʌkt] [美][dʌkt]
高次波
1.
Active Control of High Order Modes in Ducts;
管道中高次波的有源控制
2) higher harmonic
高次谐波
1.
Approach on Higher Harmonic Pollution and Harmonic Regulation in Power Supply System of Sugar Mills;
糖厂供电系统中的高次谐波污染及治理措施探讨
2.
The harm and restricting method of higher harmonic in power system;
电力系统中高次谐波的危害及其限制方法
3.
The theoretical analysis is made on the reasons why the aggrandizement of motor noise is caused by higher harmonic in the output of frequency converter, and why fan noise is induced by the resonance of carrier wave frequency and fan, and the solution scheme is put forward.
对由变频器输出中的高次谐波造成电动机运转噪声增大及载波频率与风机共振造成风机噪声的原因进行了理论分析,提出了解决方案。
3) high-order harmonic generation
高次谐波
1.
Effects of static electric field on high-order harmonic generation of hydrogen atom in intense laser field;
静电场对强激光场中氢原子产生高次谐波的影响
2.
The effects of static electric field on the time-frequency characteristics of high-order harmonic generation;
静电场对高次谐波时频特性的影响
3.
The enhancement of the conversion efficiency of high-order harmonic generation by a suitable atom;
采用适宜靶原子提高高次谐波的转化效率
4) high harmonic
高次谐波
1.
The hyper-Raman emission in the high harmonic generation;
高次谐波发射中的超拉曼发射(英文)
2.
In order to lower the single magnetically controlled reactor s high harmonics,the operated iron of saturabled controlled reactor is designed in combine-type magnetically saturable structure and set up.
为了降低单相磁控电抗器产生的高次谐波,进一步减小磁控电抗器在双极饱和磁控电抗器产生的较高次谐波电流的含量,提出在极限饱和条件下将铁心设计为磁饱和结构,并概述了叠形磁饱和电抗器的谐波消波原理。
3.
Silicon-controlled rectification installation in operation will produce high harmonic,this high harmonic can feed back to electrical network,makes the quality of electrical network drop,influences the other load in same electrical network normal work.
晶闸管整流装置在运行时要产生高次谐波,该高次谐波会反馈到电网,使电网质量下降,影响与该装置并联在同一电网的其它负载的正常工作。
5) high-order harmonic
高次谐波
1.
Function of the orbit symmetry in orientation dependence of molecular high-order harmonic;
轨道对称性在分子高次谐波取向依赖中的作用
2.
Study of the factors affecting high-order harmonic generation efficiency from a one-dimensional model atom;
一维模型原子高次谐波发射效率影响因素的研究
3.
Study on the characters of high-order harmonic of model hydrogen atom in an intense laser field;
强激光场中模型氢原子高次谐波的特性研究
6) high order harmonic generation
高次谐波
1.
Time dependent density functional theory for high order harmonic generation of helium atom;
含时密度泛函方法模拟氦原子高次谐波的产生
2.
Calculations of high order harmonic generation and ionization probability of o ne-dimensional atom in the intense laser field with pseudospectral method;
用伪谱方法计算强激光场中一维原子的高次谐波和电离几率
3.
Role of potential function in high order harmonic generation of model hydrogen atoms in intense laser field
强激光场中模型氢原子的势函数对产生高次谐波强度的影响
补充资料：电力牵引高次谐波
电力牵引高次谐波
harmonics of electric traction
d Ionl一qlony旧gooe}x{ebo电j]牵引高次谐波(harmonies of eleetrietraction)整流式交流电力机车在整流过程中将引起交流侧电流、电压波形畸变，按傅立叶级数分析该畸变波形可分解成频率为基波频率整数倍的一系列高次谐波分量的叠加。 高次谐波电流、电压可引起下列不良影响: (1)对通信线产生杂音干扰影响; (2)引起电力系统中其他电力电容器设备的过负荷; (3)当电气化铁路负荷某次谐波电流频率与电力系统自身谐振频率相近时，可产生电流谐振，使该次谐波电流在电力系统中放大，危及电力系统安全运行; (4)使旋转电机、变压器、电力电缆的出力减少并产生过热，影响电气设备寿命; (5)造成继电保护误动或仪表读数误差; (6)使半导体开关元件换相失灵。 为限制谙波的危害，各国都规定了允许谐波含量的标准(见供电质童)。 为降低电力牵引负荷产生的谐波，在电力牵引变电所和电力机车中可装设由电容、电感组成的谐波吸收装置。交流一直流一交流电力机车利用电力电子技术，可实现低谐波分量的负荷特性，使谐波含量降低。
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参考词条