However, shortly after 1987 and the Harmonic Convergence, the Soviet Union fell over all by itself.

This article expound the principle of inverter time the selective harmonic elimination technology is studied.

文中阐述了变频电源的工作原理,研究了特定消谐波控制技术.

The typical harmonic sources are simulated by simulation software PSCAD.

本文利用PSCAD软件对典型谐波源进行了仿真.

The density, the higher order collecting harmonic tone reproduction and wider scope.

实不天密度越矮,阶和解色调外现边界越宽.

The dynamic loading resulting from blast, gusts of wind, or seismic forces is generally not harmonic.

由于冲击波, 阵风或地震力所产生的动力荷载一般不是谐和的.

The horn drones , apparently Hz, with harmonic Hz , 932 Hz , and 1864 Hz.

这种喇叭发出的嗡嗡声,表面HzHz, Hz 与Hz的“和谐陪音”.

The harmonic impedance is very important to harmonic power flow and analysis of harmonic at PCC.

谐波阻抗对于进行谐波潮流计算和分析PCC处的谐波是至关重要的.

These could be good fundamentals for improving the design of harmonic gear reducer and their performances.

为谐波齿轮减速器的设计,提高其工作性能打下了良好的基础.

Therefore, a LRC filter is designed and the harmonic of switch frequency is eliminated effectively.

为此设计了LRC滤波器,有效地抑制了输出电流中开关频率处的谐波成分.

A novel harmonic micromotor actuated by force was proposed, whose basic operating principles were also described.

提出了一种基于静电驱动的新型谐波微电机,描述了该微电机的基本工作原理.

Scholars at home and abroad put forward many new active power filter systems for harmonic suppression.

为了抑制谐波,国内外有关学者研制了许多新型的有源电力滤波系统.

This lot will make a splendid addition to any Hohner or harmonica collection!

This包括很多大的图片将作精彩除了任何霍纳或口琴收藏吧!

Listening , it was as if she heard a warm and lively harmonica tune.

他在信里热烈地向朋友们呼吁着.

How do I clean my harmonica?

我该如何清洗口琴?

This will enable you to determine how well you play the harmonica.

这使你能确定你能多好地演奏口琴.

In my soul the harmonica is ringing, By the moonlight I can hear the dog barking.

我心头萦绕着手风琴声, 我听见月光下狗的吠叫.

Attitudes towards the harmonica as a musical instrument.

1以对待正规乐器的态度来对待口琴.

He made a harmonica out of the corncob.

他用玉米棒子做了一把口琴.

Before learning the blues harmonica, I knew nothing about it.

我是直接开始学习10孔口琴的, 而且是一点基础都没有的那种.

My harmonica is a 24 hole one, and what is the difference?

不好意思, 我的也是24孔的.不知有何区别?

This would be a unique and valuable contribution to the harmonica world.

这将是独一无二的,对口琴届来说也是很有价值的.