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This confirms the idea that the mechanical waves generated from the convection zone are not very effective in heating the chromosphere and corona. 这就证实了一些人认为的对流层机械波并不是一个对色球和日冕的有效加热机制的说法。
A vibration source and a medium are needed to form a mechanical wave. 机械波的形成需要振源和介质。
VHD - functions: the sine wave generated 156.25KHz. VHD --功能：产生156.;25KHz的正弦波。
Design using VHDL language of sine wave generator, but the basic operation of reference for learning! 利用VHDL语言设计的正弦波发生器，只是基本操作，仅供学习参考！
Adjustable square wave generator, square wave to control the amplitude, frequency, duty cycle. 可调方波发生器，可以控制方波的幅值，频率，占空比。
Supposition of two vibrations with same frequency and direction, condition generated mechanical wave, dynamic equation of plane harmonic wave. 同方相同频率的两个简谐振动的合成;机械波产生的条件;平面简谐行波的运动学方程。
Optional shock wave generator that introduced from Germany, which has the advantages in fragmentation efficiency, low noise and low cost of lithotripsy. 采用引进德国技术的电磁波源发生器，具有碎石效果好，无噪声，低成本碎石的优点。
A realization technique of high speed arbitrary wave generator based on dual DDS(direct digital frequency synthesizer) is presented. 提出了一种基于双DDS(Direct Digital Frequency Synthesizer)的高速任意波发生器实现技术。
This paper mainly presents a advanced double circuit sine?wave generator which comprises W77E58, CPLD, AD9835 and other ASIC. 用直接数字频率合成技术和高速单片机W77E58,可编程逻辑器件CPLD,直接数字频率合成专用芯片AD9835等超大规模集成电路来产生具有两路正弦波输出的信号发生器。
Piezoelectric wave generator contains more than eight groups of piezoelectric actuators and displacement amplifiers with flexible hinges. 压电波发生器由八组以上压电驱动器及弹性铰链位移放大机构组合而成。
To overcome this disadvantage, this study is to design gapcontrolled electrodes for a shock wave generator of an electrohydraulic lithotriptor. 为克服此缺点，本研究主要在设计可控制间距电极组，控制间距可以产生更稳定的聚焦压力。
Energy of simple vibration, supposition of two vibrations with same direction and frequency, generation and propagation of mechanical wave, physical quantities described mechanical wave, plane harmonic wave. 简谐振动的能量;同方向同频率两谐振动的合成;机械波的的产生与传播;描述机械波的物理量;平面简谐波。
Spectrumanalyzer, Oscilloscope und Wave Generator with the help of a soundcard and the audioTester: With the help of a high quality soundcard your PC will be an audio labour. 简介：声音测试软件，配合一块高质量的声卡，使PC机成为一个声音实验室。
Abstract: In order to advance the application of various digital RF tests, Tektronix held a news conference and promoted a new arbitrary wave generator called AWG5000. 摘要：为了更好地推进各类数字RF应用的测试工作，泰克公司举行新闻发布会，推出了AWG5000任意波形发生器。
By applying vibrations to the liver, MRE obtains images of the mechanical waves passing through the organ. 对肝脏振动的同时，MRE可获得机械波穿透器官后所成的像。
In order to advance the application of various digital RF tests,Tektronix held a news conference and promoted a new arbitrary wave generator called AWG5000. 为了更好地推进各类数字RF应用的测试工作,泰克公司举行新闻发布会,推出了AWG5000任意波形发生器。
The triangle wave generator, which is composed of FET and operational amplifier circuit, is applied to trigger circuit of automatic phase - shift of flash lamp. It solves the technical problem to view the high frequncy vibrator. 场效应管与运算放大器组成的三角波信号发生器,用于频闪灯触发信号的自动移相,解决了观察高频振动物体的关键技术问题。
small amplitude mechanical wave equation 小振幅机械波动方程
By requirement of 2008 Olympiad sailing games at Qingdao, the experimental study on breakwaters for structural stability, wave overtopping and reflection are made in the two-dimension wave flume with irregular wave generator. 2008北京奥运会青岛帆船比赛基地工程为了保证赛场基地内工程的水工建筑物安全可靠，满足奥运会期间帆船比赛的各项要求，进行波浪断面物理模型试验，以验证防波堤断面结构的合理性及稳定性。
Analysing spectrograms,judging what the mechanical waves or drawing waves are,calculating their wavelength,finding the defective parts and being necessary to control them effectively. 分析波谱图,判断机械波和牵伸波,计算其波长,找出缺陷部件,并有效加以控制。