This is a simple harmonic oscillation.
这是个简单谐波振荡。
And I couldn't be happier, because this tells me that the motion is that of a simple harmonic oscillation.
我们很高兴地发现，这个告诉我们，这个运动，是个简单谐波运动。
We know the initial conditions, and we know it's a simple harmonic oscillation, and we want to know what the maximum displacement is going to be.
我们知道初始条件，我们知道这是简谐振荡，我们想知道，最大位移是多少。
It's clear that you're going to see a simple harmonic oscillation.
很明显，你会看到一个，简谐振荡。
We've done this before-- this is the conservation of energy, and in order to find the period of the simple harmonic oscillation, we take the time derivative.
以前算过-,这是能量守恒，为了算出,简谐振荡的周期，我们求时间导数。
We've thought about oscillation now, simple harmonic motion.
我们现在考虑的是振动，简单的简谐运动。
The angles will never be very large, as you will see later when we calculate theta maximum, and so we know that we're going to get a simple harmonic oscillation to a very good approximation.
这个角度永远不会很大，当我们算θ最大值时,你会看到,我们将会得到一个很,好的简谐震荡近似值。
This paper presents a simple method for measuring gas adiabatic constant by use of simple harmonic oscillation.
本文介绍了一种简单的利用简谐振动现象测量气体的定熵指数的方法。
It mainly consists of harmonic generation, sum-frequency generation, difference-frequency generation, optical parametric oscillation and etc.
它主要由二次谐波产生、和频产生、差频产生、光参量振荡等构成。
Additional negative feedback is provided to set loop gain to unity at the oscillation frequency, to stabilize the frequency of oscillation, and to reduce harmonic distortion.
为了使振荡频率稳定并降低谐波失真，需要加入一个在震荡频率处能够提供单位增益的负反馈路径。
In the design of current-mode PWM DC-DC converters, the slope compensation method widely used to prevent sub-harmonic oscillation can significantly weaken the load capacity under a high duty cycle.
电流模pwm集成dc - DC变换器设计中，为了防止亚谐波振荡而普遍采用的斜坡补偿，会在占空比较大时严重影响芯片的带载能力。
It is discovered that driven by the super strong laser field, the oscillation of electrons, due to their relativistic motion, will generate harmonic emission.
研究发现，在超强激光作用下电子运动的相对论效应可导致高农谐波辐射。
It is also pointed out that the incorrect notion "the composition harmonic oscillation" in most textbooks should be correct.
指出目前教科书中“简谐振动的合成”的提法没有实质性的物理意义，是一个错误概念，应当予以纠正。
Especially, the sub-harmonic oscillation of the low frequency inductor current is analyzed and the method to solve this problem is proposed.
分析了变换器低频电感电流的次谐波振荡问题，并提出了抑制措施，实验验证了理论分析的正确性。
The relation between period and energy for the harmonic-like oscillation is obtained by using the analysis method of horizontal curve of energy function.
利用能量曲线的分析方法，建立了类谐振子的周期和系统能量的数学表达式。
In the design of current-mode PWM DC-DC converters, the slope compensation method is widely used to prevent sub-harmonic oscillation.
设计电流模脉冲宽度调制直流转换器时，人们广泛采用斜坡补偿电路来消除谐波振荡。
The dynamical model and the oscillation-rotation model of particle are derived from the dynamical mechanism of spontaneously break symmetry, and its simplified form is a harmonic oscillator model.
简述了已知的粒子质量公式，由动力学的对称性自发破缺机制导出粒子的动力学模型和振动-转动模型，其简化形式是谐振子模型。
Power quality disturbances mainly include harmonics, voltage sags, voltage swells, voltage interrupts, flickers, oscillation transients, voltage sags with harmonic and voltage swells with harmonic.
电能质量扰动主要包括谐波、电压暂降、电压暂升、电压中断、电压波动、暂态振荡、谐波暂升和谐波暂降等电能质量问题。
This paper presents a simple method for measuring gas adiabatic constant by use of simple harmonic oscillation.
流变振动仪利用等截面杆的纵向简谐振动来测定材料的阻尼，十分方便和有效。
The large scale system's decomposition theory is used to study the harmonic oscillation problem of this system.
本文利用大系统分解理论来研究时变大系统之平稳振荡问题。
Any subtle change of capacitance can be measured through the method of modulation on high-frequency harmonic oscillation return circuit.
电容的微小变化可通过对高频谐振回路调制的方法进行测量。
So not only super-harmonic, also subharmonic and stochastical oscillation will appear.
因而，系统不但出现高次谐波，而且还将出现亚谐波及。
In the design of voltage PWM inverter, the existence of dead-time will arouse the in-crease of output harmonic, the pulsation of the motor torque, and even the oscillation of the motor.
设计电压型PW M变频器时死区时间的设定会造成输出谐波增加、负载电动机转矩脉动，严重时甚至引起电动机震荡。
The existence of odd-harmonic solutions for a second order pendulum-type oscillation equation was studied.
研究了二阶摆型振动方程奇调和解的存在性。
And then, we mainly discuss the peak current controlling mode and the sub-harmonic oscillation when the duty cycle exceeds 50%.
同时，着重分析了峰值电流控制模式下，由于电流扰动和占空比扰动导致系统在占空比大于50%情况下而出现次谐波振荡原因。
Via variant of displacement harmonic oscillation, the exact electronic states in the semi-parabolic QW with an applied electric field are obtained.
通过位移谐振子变换，得到了系统中的电子态的精确解。
Via variant of displacement harmonic oscillation, the exact electronic states in the semi-parabolic QW with an applied electric field are obtained.
通过位移谐振子变换，得到了系统中的电子态的精确解。
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