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汉语拼音：tiáo pín

1.调整交流发电机等的输出功率，使电力系统等的频率保持在一定范围内，以保证用电设备正常工作。

2.使载波的振幅保持不变，而它的瞬时频率依照所需传递信号的变化规律而变化。

1. 交流发电机或电力系统的负荷变动时，用手动或自动方法调整原动机的功率输出，使电能的频率变化维持在一定范围内，以保证用电设备工作正常。

2. “频率调制”的简称。使载波的瞬时频率按照所需传送信号的变化规律而变化，但保持振幅不变的调制方法。

• Velocity-gate pull off is often used to cheat the velocity tracking system in radar.

  速度门拖引常用来欺骗雷达的速度跟踪系统，文中探讨了对抗速度门拖引的解线性调频方法。

• In frequency modulation continuous wave (FMCW) radar, the target information is usually extracted by Range-Doppler processing.

  调频连续波（FMCW）雷达往往通过对回波信号的距离-多普勒处理来提取目标信息。

• To be sure that FM screening now and in the next few years is not possible to completely replace the amplitude-modulated screening.

  一不背可以肯不退的，调频增网长远和畴昔几年边不不定合座代替调幅增网。

• Essentially, SCA signals are multiplexed onto an FM broadcast by means of frequency modulation of a sub carrier.

  基本上，政制事务局局长信号多路复用到一个调频广播方式，频率调制的一个小组的载体。

• Abstract : The emissive frequency of the general frequency modulation broadcast transmitter is fixed.

  一般的调频广播发射机，发射频率是固定的。

• In a facility near Taipei, he began making plastic channel-changing knobs for black-and-white television sets.

  一开始他在台北附近生产黑白电视机的塑料调频旋钮。

• The Voice of Firestone was the first commercial radio program to be carried simultaneously on both AM and FM radio stations.

  凡世通的声音是第一个商业电台节目，同时进行调幅和调频的广播电台。

• the other is a mesh point size and spatial distribution of changes in the frequency shall be referred to as level 2 dots.

  另一栽是网不面巨细和不时间漫衍频率均在改变，称为二级调频网不面。

• FM does not follow fixed screen angles and grid to carry out the same size as the dot, but amounts, that is to be random.

  调频增网洋不按照变动的增网角度和网格来举行，网点巨细差别，但数度不相等，也不即是说是随机呈现的。