medium frequency direction finder

VHF and UHF direction finder

甚高频与超高频测向器

high and very high frequency direction finding

高频和甚高频测向仪

ionospheric HF oblique sounding

电离层高频斜向探测

very high frequency receiver testing generator

甚高频接收测试发生器

high-frequency displacement detection amplifier

高频位移检测放大器

high frequency ionization chromatographic detector

高频电离色谱检测器

DESIGN OF ARC TRANSDUCER ARRAY WITH HEART-SHAPED DIRECTIVITY

高频心形指向性圆弧换能器阵的研制

Three-phase Bi-directional Voltage-source High Frequency Link Inverter;

三相双向电压型高频链逆变器的研究

Accurate measurement of frequency response of high-speed optical intensity modulator using frequency sweeping method

扫频法精确测量高速光调制器频率响应

VHF omni range distance measuring equipment

甚高频全向信标测距设备

Measuring methods for high frequency signal generators

GB/T12115-1989高频信号发生器测试方法

Influences of center frequency and bandwidth on UHF PD detection for transformers

变压器局放特高频检测中检测频率和带宽的影响

Study on the Combined Measuring Method of HF and UHF Used for Monitoring PD of Transformer;

变压器局部放电高频和特高频联合监测法的研究

A Compound Flyback Bi-Directional Current Source High-Frequency Link DC/AC Converter;

双组合式单端反激双向电流源高频链逆变器

Low Power Unidirectional Voltage Source High-frequency Link Inverter;

小功率单向电压型高频链逆变器的研究

Design of an L-band Miniaturized High-performance Bi-directional Coupler

L频段小型化高性能双定向耦合器设计

Soft Starter to Triphase Asynchronous Motor with High Frequency AC-ovonics-based Power Converter

双向开关高频变换型三相异步电机软起动器

Design of an Unidirectional High-Frequency Link Inverter Based on STC Single Chip

基于STC系列单片机的单向高频链逆变器设计