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beat frequency 拍频;差频

  • He says it is possible to detect different species of mosquito because their wings beat with a distinctive frequency.

    表示检测不同蚊子有可能的,因为它们翅膀扇动频率有着明显区别。

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  • If you can slow down the rhythm of your breathing, the frequency of your heart beat down.

    如果呼吸节奏放慢心跳频率就会跟着降下来。

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  • The influence of time length and beat frequency on radar range is discussed.

    讨论了信号时长差拍频率雷达作用距离影响

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  • The Doppler frequency can be obtained as a heterodyne or beat effect.

    由于外差或频差效应,能够得到频率

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  • Measuring for the beat error (frequency error) : Numerical display in milliseconds. Resolution is 0.1 milliseconds; the measuring range is 0-9.9 ms.

    偏振(频率错误)测量数值毫秒显示分辨率0.1毫秒,测量范围0—9.9毫秒

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  • The changes of the myocardial beat frequency before and after administration were counted.

    通过计数器计数前后心肌细胞搏动频率变化

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  • Brillouin enhanced four wave mixing, whose interference beat frequency drives an acoustic field, can improve the SBS phase conjugation fidelity.

    采用混频加强SBS的方法,相干驱动声子提高SBS相位共轭保真度

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  • The envelope of the beat frequency will always be stationary in space; no angular velocity.

    信封摆动频率永远固定空间没有角速度

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  • This paper studies power tuning curve and beat frequency tuning curve of 6328a transverse Zeeman laser adopted mutually orthogonal magnetic fields.

    本文研究了采用正交磁场的波长为6328a横向激光器功率调谐曲线调谐曲线。

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  • The envelope of the beat frequency is depicted as the grey areas.

    信封摆动频率描述灰色地带

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  • In this paper, a measuring instrument is designed based on relative measurement of the semiconductor laser frequency stability making use of the beat technology.

    本文设计了一种测量基于拍频技术半导体激光器频率稳定度进行相对测量

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  • Our hearts will beat with a higher vibration and the frequency of light will have been turned up.

    我们一个更高振动跳动频率出现

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  • A tunable GaAlAs diode laser is used as a chirp signal source, the distance is detected by calculating the beat frequency.

    由可调谐半导体激光器产生一个啁啾信号通过测量拍信号频率计算距离

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  • The node is used as sampling flag and the beat-wave fringe fraction is measured with double frequency interferometer combined by optical components.

    装置以拍波合成的场强信号的节点为对准标志光路组合形成的双频激光干涉仪测量尾数部分。

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  • The range measurement of the FMCW radar is based on the estimation of the frequency of the beat-note signal.

    为了提高FMCW雷达距离测量精度,提出了一基于差拍信号相位的距离估计方法。

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  • Objective To investigate the effects of different concentrations of propofol on cilia beat frequency (CBF) of isolated human tracheal epithelium.

    目的观察异丙酚体气管上皮细胞纤毛摆动频率(CBF)影响

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  • Based on the random variation of cavity length, characteristics of the medium index and mode competition effect, low-frequency beat and noise continuums are explained.

    根据长的随机变化介质色散特性竞争效应解释了低频连续噪声谱。

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  • Theoretical analysis showed that the laser frequency stability and the beat frequency stability is in the same.

    理论分析表明激光频率稳定频频率的稳定度相同。

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  • She filmed them, so that she could analyse the frequency with which they beat their tails as they swam and measure the amplitude of these powerful tail strokes .

    诺尔博士拍下海豚游动情况以便分析在游动时它们拍打尾部频率同时能测出这些强有力的尾部拍击的振幅

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  • A remote measurement system of solid surface displacement by laser Doppler effect of grating which was used to produce beat frequency is discussed.

    研究利用运动光栅多普效应进行位移遥测技术。

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  • The new effects of phase-conjugation asymmetric attosecond sum-frequency polarization beat (ASPB) of twin composite color-locking stochastic fields in cascade three-level system are investigated.

    研究级联三能级系统孪生色锁随机相位共轭阿秒和频极化频(ASPB)不对称效应

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  • And tests on the laser's optical performance like wavelength, the facular quality and mode, the fluorescence signal, the beat frequency signal are carried out;

    激光器电学部分自制电压源、电流源、温控模块研制方案及电路框图进行了介绍,给出了测试数据数据分析结果;

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  • And tests on the laser's optical performance like wavelength, the facular quality and mode, the fluorescence signal, the beat frequency signal are carried out;

    激光器电学部分自制电压源、电流源、温控模块研制方案及电路框图进行了介绍,给出了测试数据数据分析结果;

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