high frequency

1. You can't hear waves of such a high frequency.
   如此高频率的声波是无法听到的。
2. Maybe we could look for high frequency components in Fourier transforms on the sequences.
   或许我们可以寻找序列的Fourier变换中的高频率成分。
3. A kind of high frequency pulse electrical source at the need of electromagnetic ultrasonic experiments is presented.
   针对电磁超声实验对脉冲电源的需求，研制了一种高频脉冲电源。
4. Development trend of power supply for electrostatic precipitator is discussed according to the characteristics of high frequency power supply.
   文中根据高频电源的特点讨论了静电除尘器供电电源的发展趋势。
5. This paper presents a device to realize the high frequency inductive power supply for Maglev.
   探讨了一种磁浮列车高频感应送电的装置。
6. Objective To study the effects of high frequency steady noise on cardiovascular system.
   目的观察高频稳态噪声对心血管系统的影响。
7. This paper introduced the design and development of silicon piezoresistive high frequency dynamic pressure sensor.
   阐述了压阻式高频动态压力传感器的设计与开发。
8. The sampling system that sample this high frequency signals is a high-speed data acquisition system.
   对此例高频信号进行采样的系统，就是所谓的高速数据采集系统。
9. By electromagnetic wave absorbing theory, this paper discussed building wall's absorbing characteristics in high frequency.
   利用电磁波吸收理论研究了建筑围墙对高频电磁辐射的吸收特性。
10. And the effects of the geometrical dimensions of the grating on high frequency characteristics of system were analyzed.
    并针对矩形栅的两种典型结构进行数值计算，分析了金属栅的几何尺寸对系统高频特性的影响。
11. The effect of electrolyte on high frequency electrical property of wet tantalum capacitors was studied.
    研究了电解质对高频液体钽电容器电性能的影响。
12. Research progress of recent years on high frequency characteristics of magnetic thin films were summarized systematically.
    对国内外近年来在磁性薄膜高频特性的研究进展进行了较为系统的总结。
13. Mode and Loss Analysis of High Power, High Voltage and High Frequency Transformer
    大功率高压高频变压器模式和损耗分析
14. In this example, high frequency switches are required to connect the communications analyzer to the handset.
    在本例中，需要利用高频开关将通信分析仪连接到手机。
15. Effectively suppresses low to high frequency noises.
    有效地抑制低频率到高频率的噪声。
16. The most methods for the high frequency excitation of the audio signals are to generate its higher harmonic signals.
    实现音频信号高频激励的主要方法是产生音频信号的高次谐波，一般有机械激励法和模拟激励法。
17. Good DC current characteristics in high frequency and high temperature.
    在高频和高温环境下具有良好的直流电流特性。
18. Abstract: In this paper, the failure analysis of a type of high frequency power transistor is introduced.
    介绍了对某型号高频大功率晶体管进行的失效分析。
19. The noise emission can be also controlled in this way in high frequency range ( Fig.11 and Fig.12).
    在高频范围的噪声辐射也可通过此方法控制（图11和图12）。
20. A method for high frequency pulse measurement of high voltage triggered vacuum switch is introduced in this paper.
    介绍了一种高压真空触发开关导通瞬间高频脉冲电压的测量方法，并构建了相应的测量系统。
21. MRI can be a good supplement to mammography and high frequency ultrasound;
    ②MRI可作为超声和钼靶检查必要的补充方法；
22. Waveform pure, high frequency stability, no magnetic interference ( EMI, EMC).
    波形纯正，频率高稳定，不产生干扰磁波（EMI、EMC）。
23. This criterion need not high frequency parameters, so the proposed method is easy to set and implemented.
    该判据不需要高频参量，易于整定和实现。
24. Applications: Low Voltage, High Frequency Inverters, and Polarity Protection Applications.
    主要用途：低电压整流，高频转换开关和极性保护。
25. A quadrature down-conversion mixer based on this topology is designed and optimized for an ultra high frequency RFID reader.
    设计并优化了一个基于共用跨导级结构的用于超高频RFID阅读器的正交下变频混频器。
26. The design consideration of high power and high frequency Magnetically insulated Transmission Line Oscillator ( MILO) was made.
    初步考虑了高频率与高功率的磁绝缘线振荡器的设计问题。
27. Doppler frequency shift observation of ionospheric high frequency echo is an important method for studying ionospheric disturbances.
    电离层高频反射回波的多普勒频移观测是研究电离层扰动的一个重要方法。
28. A dynamic adjusting method is presented when some additional information in the high frequency data is available.
    文中提出了高频序列有补充信息时对低频预测结果的动态调整方法。
29. The mechanism and kinetics of parathion degradation was investigated under high frequency ultrasonic irradiation in aqueous solution.
    研究了高频超声降解水溶液中对硫磷的反应动力学以及机理。
30. High output capability and low distortion with excellent high frequency extension characterize these new drivers.
    高输出能力和优异的频率扩展的特点，这些新的驱动程序低失真。

noun

1. a pitch that is perceived as above other pitches

   Synonym:    high pitch

2. 3 to 30 megahertz

   Synonym:    HF