1) multi-frequency
多频
1.
Advances in research of sonochemical yield effect of multi-frequency ultrasonic irradiation;
多频超声辐照的声化学产额研究进展
2.
High-accuracy analog demodulation technology for multi-frequency bioelectrical impedance;
多频生物电阻抗高精度模拟解调技术的研究
3.
Design of a novel multi-frequency microstrip slot antenna;
一种新型多频缝隙微带天线的设计
2) multi-band
多频
1.
It is very important and significant that a multi-band and multi-mode electronic reconfigurable antenna can substitute several antennas, wh.
多频段多模式的电控可重构天线可以取代原先一个平台上的多个天线，减少天线系统的成本、空间和重量。
2.
The concept of a ‘fractal’has been applied to antenna design in order to reduce the size of antenna and obtain multi-band frequency operation.
分形是通过迭代函数系统产生的具有自相似性的分数维结构,分形的概念可用于天线设计以实现天线的尺寸减缩和多频特性,这在军用和民用方面都有着非常广泛的应用前景。
3.
In the mobile communication system, the multi-band base-station antennas that a lot of systems share can decrease the number of antennas, reduce the interference among antennas, and save the fabricate cost.
在移动通信系统中，研究多个系统共用的多频基站天线可以减少天线的数目，降低天线间干扰，节约天线成本，而且可以共享原有的基站。
3) multirate
多频
1.
An improved self tuning generalized predictive control (GPC) algorithm is presented for SISO multirate system where the sampling rate of the output is slower than the updating rate of the input.
针对输出采样速率比输入更新速率慢的多频系统，提出了一种改进的广义预测自校正控制算法。
2.
For the multirate system in which the sampling rates of the output and the input are different, the mul- tirate predictive control algorithm is proposed.
针对输入更新频率和输出采样频率不同的多频预测控制问题进行了研究，并采用定性分析的方法，对多频预测控制方法和单频预测控制方法对系统控制性能的影响进行了分析、比较，仿真结果表明：多频预测控制具有降低超调和提高系统响应快速性等特点。
4) Multi-mode and Multi-band
多频多模
1.
Investigations on the Multi-mode and Multi-band Receiver Module Based on Digital IF Technology;
基于数字中频方案的多频多模接收模块
5) multi-audio frequency modulation jamming
多音频调频
1.
On the basis of Link-11A communication signals,three jamming modes used for tracking and aiming: noise frequency modulation jamming,multi-audio frequency modulation jamming and FSK jamming on π/4-DQPSK signals were studied.
基于四相差分相移键控(π/4-DQPSK)的调制方式在数据链通信中占有十分重要的地位,从分析π/4-DQPSK基带与频带信号特征出发,以Link-11A数据链通信信号为基础,研究了用于跟踪瞄准式干扰的3种干扰样式:噪声调频、多音频调频、频移键控对π/4-DQPSK信号的干扰。
6) Multiple frequency to dual frequency
多频到双频
补充资料：多频闪摄影
多频闪摄影(Multi stroboscophtography)为对各种运动的分像摄影和动体解析而提供的摄影，多数情况使用黑背景和用多次闪光灯作光源。根据动体的动作在一片格的胶片上，有时使像叠合一起拍摄，有时也采用连拍。通常由于光量少，多使用高感胶片。
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