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Objective To observe the effect of modulated frequency sinusoidal electrotherapy on experimental renal failure in rabbits. 目的探讨正弦调制电流对实验性肾功衰竭的治疗作用。
Each emitting diode is punctual to emit the infrared light signal in turn from the right diode to the left one which has a modulated frequency of 40 kHz. 各发射管自右至左分时依次发射调制频率为40 kHz的红外光信号;
Based on the modulated frequency of the spatially overlapping between two lasers, the relationship between the laser intensity and modulated frequency is discussed. 根据激光之间空间耦合作用的调制频率，讨论并分析了激光系统中强度与调制频率之间的关系。
A calibrated He-Ne laser and a mechanical chopper producing a modulated frequency are used to measure the voltage responsivity of ZnO pyroelectric sensors. 及溅镀机沈积氧化锌焦电薄膜。焦电感测器量测方式主要以氦氖雷射，搭配断波器控制红外线的频率，来量测焦电感测器的电压响应。
Based on theory of PTR, the linear relative between si g nal phase and modulated frequency under special condition is showed.The therma l diffusivity is determined by fitting the experimental data. 从光热辐射理论出发，在一定条件下，推导出位相信号和调制频率的关系表现为线性关系，分析实验数据得出材料的热扩散系数。
Modulated Frequency Radio Telephone 调频无线电话
linearly modulated frequency stepped(LMFS)radar 线性调频步进雷达
And higher modulation frequency can be achieved with small current aperture and adequate spontaneous emission factor. 通过减小VCSEL电流孔径、适当增大自发辐射因子可以实现比边发射器件高几倍的传输速率;
If this modulation frequency is present the output of the comparator will be low. 如果这是本调制频率的输出将是比较低。
It is convenient to change the optical intensity of the sidebands by tuning the DC bias voltage while the microwave modulation frequency and power are fixed. 当微波调制频率及功率一定时，可方便地调节直流偏置电压来改变各阶光波的强度。
Experimental data show that the intensity modulation depth increases with the bias current of LD.When the modulation frequency increases,the intensity modulation depth decreases. 实验数据表明，光强调制度随激光器偏置电流的增加而加深，随调制频率的升高而减小。
The character of FSK spectrum is centrosymmetric, spectrum peaks spread with an interval of the modulation frequency, so the right frequency cannot be got by FFT spectrum. 移频信号的频谱特性是谱峰以新出现的边频频率为中心，以低频频率为间隔向两边展开，通过FFT谱分析不能得到精确的结果；
Nearest-neighbor pattern recognition can recognize low modulating frequency of FSK in higher sam-pling frequency, avoiding the disadvantage of sub-Nyquist sampling. 最近邻模式识别法在采用较高采样频率而导致频谱分辨率不高的情况下仍可准确检测FSK信号,有效避免了以往欠采样带来的采样时间较长的弊端。
modulated frequence 已调频率
Her voice was modulated to a ghostly cheerfulness. 她的声音是愉快的，但做作得可怕。
Her voice was modulated to a ghostly cheerfulness . 她的声音是愉快的，但做作得可怕。
Matlab 6.5 finding is it a signal a FSK modulated. (译)：基于MATLAB 6.;5的发现是一个信号频移键控调制。
The characters of this improved circuit are not only low phase noise and high stable carrier but also ideal AF modulation frequency response, excellent anti-vibration and temperature performance. 该电路不仅具有低的相噪、高稳定的载波,还具有理想的音频调制频响、优良的抗震动性能和温度性能。
The change of the modulation frequency will change the corresponding frequency value of the protuberant part on the PSD curve, and at the same time the peak value of the protuberant part is changed. 当调制频率不同时，PSD曲线的突变部分会发生相应的频移，调制频率高则突变发生在空间频率较高的频段，同时PSD峰值不变。
To solve the problem of sky-high modulation frequency requirement in MOG (Micro-Optical Gyroscope), a new double-frequency modulation technology based on triangular wave was proposed. 对微光学陀螺双频率调制中需要极高调制频率差的问题,提出了一种基于三角波的双频率调制技术。