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- 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。
- 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。
- 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。
- Harmonic Frequency Synthesizer and FSK Modulator 谐波频率合成器与FSK调制器
- The harmonic combination of these tones. 四度和音音调的和谐组合
- harmonic frequency of loudspeakers 扬声器谐振频率
- harmonic frequency characteristic 谐波频率特性
- graded harmonic frequency telegraphy 分级谐频电报
- A loudspeaker designed to reproduce bass frequencies. 低频扬声器设计用来再现低音频率的扬声器
- The interval between any two frequencies having a ratio of2 to1. 倍频程频率比率为2比1的两个频率的间隔
- Harmonic: it identifies frequencies and amplitudes of the spectrum components. 和音:它能够识别频谱要素的频率和振幅。
- Consisting of different wavelengths or frequencies. 非单一波长或频率的由多种不同波长或频率组成的
- A tone in the harmonic series of overtones produced by a fundamental tone. 泛音指由一种基本的声音所产生的一系列和谐的泛音中的声音
- 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。
- That real learning took place at South Harmon. 真正的学习发生在南哈蒙。
- Confined waves have definite frequencies. 被限制的波具有确定的频率。
- The effect is termed harmonic distortion. 这种作用就称为谐波畸变。
- At some frequencies, it can penetrate walls. 在一些频率，它能穿透墙壁。
