1) FM (frequency modulation,frequency modulated)
调频，[已]调频的
2) frequency-modulated,FM
已调频的
4) Frequency modulation
调频
1.
The research of frequency modulation system of the medium frequency generator;
中频发电机调频系统研究
2.
Research on continuous frequency modulation of semiconductor laser by varying the length of external cavity;
半导体激光器外腔长连续调频特性的研究
3.
Research on Rotor-bearings System Nonlinear Dynamics Behaviors, Fluid-solid Interaction and Its Frequency Modulations;
轴承—转子系统非线性动力学行为及其耦合调频技术研究
5) FM
调频
1.
Simulation and Analysis of Nonlinear FM Output Function of AD9854;
AD9854非线性调频输出功能的仿真与分析
2.
The Development of FM Transmitter Based on PLL;
锁相环调频发射机的研制
3.
A low frequency high power FM scanning acoustic beam transmitting system;
一种低频大功率调频声波束扫描发射系统
6) frequency regulation
调频
1.
Electromagnetic Oven Control System Based on the Frequency Regulation Mode;
基于调频方式电磁炉的控制系统
2.
The frequency regulation has been modified;The "press deviation dragging load"loop has been designed in order to limit the response speed of turbine valve;The direct Energy Balance(DEB) strategy has been replaced by Indirect Energy Balance(IEB) strategy;Fuel feedforward has been used to compensate the time delay of the CFB boiler.
在分析河北省保定热电厂原协调控制策略的基础上提出了改进措施:完善了一次调频功能;设计了汽机侧的“压力偏差回拉功率”回路,以限制汽机侧调门的动作速率;将直接能量平衡策略改为间接能量平衡策略;为克服锅炉燃料调节的滞后性使用了燃料前馈。
3.
When the generator primary frequency regulation of system is at low level,severe accident may cause power system collapse if it is not treated properly and timely.
当系统发电机整体一次调频(PFR)水平较低时,如遭遇严重事故而不及时进行控制,将导致频率崩溃、系统瓦解。
补充资料：调频
载波的瞬时频率按调制信号的变化而变，但振幅不变的调制方式。载波经调频后成为调频波。用调频波传送信号可避免幅度干扰的影响而提高通信质量。广泛应用在通信、调频立体声广播和电视中。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条