您要查找的是不是：
- FLOCK button. Pressing the Frequency Lock button will disable all frequency determining controls on the front panel, to prevent accidental changes of frequency. 频率锁定,按下这个按钮前面板所有频率控制按钮将被禁用,防止意外改变频率。
- Because of the frequency lock loop traction PLL filter can be designed very narrow, with very good noise suppression performance, to meet the precise requirements of carrier phase tracking. 由于有锁频环的频率牵引，锁相环路滤波器可以设计得很窄，具有很好的抑噪性能，满足精确跟踪载波相位的要求。
- frequency Locking servo control circuit 锁频伺服控制电路
- equivalent Q resonant frequency locking 等Q共振锁频
- modulation-free laser frequency locking 无调制锁频
- Digital Automatic Frequency Lock 数字自动频率锁定
- digital frequency lock loop(DFLL) 数字锁频环
- The FLL features digital frequency locked loop (FLL) hardware that, in conjunction with a digital modulator, stabilizes the DCO frequency to a programmable multiple of the watch crystal frequency. 在FLL 功能数字频率锁定环（ FLL ）的硬件，与数字调制器，稳定会计频率可编程多的观赏晶体频率。
- It adopts the way of PLL (Phase Locked Loop) and FLL (frequency Locked Loop).It not only satisfies the dynamic capability and tracking precision, but also can alternate according to the environment. 在载波跟踪中，采用了PLL(锁相环)与FLL (锁频环) 结合的载波跟踪方案，使得跟踪环能够同时满足动态性能与跟踪精度的要求，且根据环境的变化使PLL和FLL交替工作。
- Frequency Locking Technique in Digital Closed-Loop Resonator Fiber Optic Gyro 谐振式光纤陀螺数字闭环系统锁频技术
- He varied the transmission frequency. 他变换了无线电传送的频率。
- Current development of optical pulse offset frequency locking techniques 激光脉冲偏频锁定技术的发展
- 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。
- 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。
- Frequency Locking of a Semiconductor Laser via Radio-Frequency Modulation Spectrum 采用射频频率调制光谱实现半导体激光器稳频
- Discussion on Design of Frequency Locking and Frequency Releasing for Closed-loop Coded Mainline Track 闭环电码化正线锁频及解频设计的探讨
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- Modulation-Free Laser Frequency Locking by AOM Shifted Cesium Sub-Doppler Spectra 声光偏频亚多普勒光谱无调制激光频率锁定
