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- Intermediate frequency instability has had the most uneven history. 中频不稳定性的研究经历了极为曲折的道路。
- Low and intermediate frequency instability models are taken up first. 首先处理低频和中频不稳定性的模型。
- The hydrogen maser is the generally available frequency standard with the smallest frequency instability for all but the shortest measuring time interval. 为了提供高精密的时间频率,人类已经研制出氢原子钟,除长期稳定度之外,它的各项性能都是十分优秀的。
- The phase noise in microwave receiver and the measured parameter of source frequency instability are described in this paper, and the technology of frequency-synthesizing and theory of Phase Locked Loop (PLL) are also briefly introduced. 摘要阐述了微波接收机中的相位噪声概念及本振源频率不稳定度的实际测量参数，并简要介绍了频率合成技术和锁相环路工作原理。
- High frequency instabilities result in grossly increased convective heat transfer coefficients in the chamber walls. 高频不稳定性使室壁对流传热系数大大增加。
- 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
- 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。
- frequency instability 频率不稳定性
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- Low or intermediate frequency combustion instability generally involves the interaction of several components of an engine system. 低频或中频燃烧不稳定性通常包含发动机系统中几个组件的相互作用。
- He manipulated the frequency dial of the radio. 他开始调拨频率键盘。
- The pitch depends on the frequency. 音调的高低是由频率决定的。
- The resulting frequency varies by a few percent. 最终频率有少许变动。
- I am majored in audio frequency amplifier. 我主修音频放大器。
- Small dissipation factor at high frequency. 高的频率和小的损耗因素.
- Spread the palpitate frequency love till ending. 循着心跳的频率爱到永不分离。
- Wave speed equals frequency times wavelength. 波速等于频率乘以波长。
