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- Harmonic frequency suppression 谐波抑制
- With HTS Josephson junction as the mixing element, 50th harmonic frequency mixing at 3mm wave band is obtained on the system. 在该系统上成功实现了高温超导混频器在3毫米波段的50次谐波混频。
- A filter with a tuning frequency more than 10% below the lowest harmonic frequency with considerable current/voltage amplitude. 在相当大的电流/电压幅值时.;滤波器的调谐频率比最低值的谐波频率还要低10%25以上
- A high efficiency dual-band RF power amplifier has an output and/or input of a high frequency transistor well terminated at the second harmonic frequency for dual-band operation. 本发明乃一种高效率双频射频功率放大器，提供高频电晶体的输出端与?或输入端于双频操作中有良好的二阶谐波终止。
- fundamental frequency suppression 基波抑制
- Harmonic frequencies in the power grid are a frequent cause of power quality problems. 谐波频率在电网中是造成电能质量问题的常见原因。
- Harmonic Frequency Synthesizer and FSK Modulator 谐波频率合成器与FSK调制器
- harmonic frequency of loudspeakers 扬声器谐振频率
- Unfortunately, they also suffer from some disadvantages, such as poor rejection to outside passband, and they are easily to be disturbed by high order harmonic frequencies. 但是也都存在一些共同缺陷，诸如带外抑制能力较差，容易受到高次谐波分量的干扰等等。
- harmonic frequency characteristic 谐波频率特性
- graded harmonic frequency telegraphy 分级谐频电报
- C 3-Mode TM is the most advanced ultrasound contrast imaging technology by mow. It uses not only ultrasound signals of the harmonics frequency,but also the half of fundamental frequency and the fundamental frequency. C3 -ModeTM技术是目前最先进的造影剂成像技术 ,它不仅提取了造影剂二次谐波信息 (2fo) ,还同时提取了次谐波 1/ 2fo和基波fo频段的回波信号。
- The harmonic combination of these tones. 四度和音音调的和谐组合
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Computation and Simulation on the Harmonic Frequency of the Torsional 天线座驱动系统扭转振动谐振频率的计算及仿真
- Internal capacitors to suppress radio frequency interference. 内置抗电磁干扰电容。
- Real-Time Measurement of Harmonic Frequency with Fiber Bragg Grating 基于布拉格光纤光栅谐振频率的实时测量
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- Along with the appearance of various compulsive criteria of harmonic suppression,designing the frequency converter with APFC circuit will become a current. 随着各种限制谐波污染的强制规范陆续出台,在变频器中加入APFC电路将成为一种趋势。
