查询词典 harmonic

In this paper, two harmonic current detecting methods based on the theory of instantaneous reactive power of three-phase circuits are analyzed and compared with different voltage condition.

分析了基于瞬时无功功率理论的三相电路谐波电流检测的两种算法，并根据算法原理在不同电压条件下进行了对比研究。

There are two basic types of distortion - harmonic and intermodulation - and both are almost always present together.

有两种类型的失真——谐波失真和交叉调制失真。多数情况下，这两种类型混在一起造成失真。

Total harmonic distortion and intermodulation distortion measurements can be automated using HPIB programming.

总谐波失真和互调失真测量可以自动使用HPIB节目。

The SPEC-4 actually had lower total harmonic distortion and lower intermodulation distortion than its more expensive brother.

在SPEC - 4实际上有较低的总谐波失真低于其更昂贵的兄弟互调失真。

Objective:To examine the impact of native tissue harmonic imaging in defining endocardial border and visualization of intracardiac structures.

目的：研究自然组织谐波对心内膜显示能力和心内结构清晰度的影响。

Including two-photon fluorescence and second harmonic generation, its optical sectioning ability and minimally invasiveness makes it a preferable choice for intravital observation.

多光子显微术包含多光子萤光与倍频讯号，其光切片效果及低侵入性，使这项技术非常适合运用於活体观察。

In this scheme, the inverse transfer function of inverter is used as a compensator to obtain stable and satisfy harmonic rejection.

采用了逆变器传递函数的逆函数来获得足够的稳定性和谐波抑制能力。

The harmonic field of electric dipole source on the uniform earth surface is converted into transient field by inverse Laplace transform,and the Bz/ t transient curve is calculated.The Hz transient curves on the stratified earth surface are obtained from cosine transform calculated by broken line approximation.

由逆拉普拉斯变换将均匀大地面上的电偶极子源谐变电磁场转换为瞬变电磁场，并计算出Bzt瞬态曲线；对分层大地面上的瞬变电磁场，采用折线逼近法计算余弦变换得出Hz瞬态曲线。

The generators and irreducible representation coherent stato of the SU(1,1) group are constructed by using the inverse operators of hose harmonic oscillator, and the inhomogeneous inverse differential realization s of the SU(1,1) group are derived

利用玻色振子的逆算符构造了SU（1，1）群的生成元和不可约表示的相干态，导出了SU（1，1）群的非齐次逆微分实现。

We proved that the minimal surfaces were isothermal parameter surfaces and harmonic surfaces. The symmetry and the self-intersection properties of the minimal surfaces were studied.

证明了该曲面既为等温参数曲面又为调和曲面，并研究了该曲面的对称性质与自交性质。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。