Whatever it is radar, eccm equipment, communication equipment or instrument, frequency source with high stability is needed to guarantee the quality of carrier signal.
无论是雷达、电子对抗，还是通信、仪器设备等都需要高稳定度的频率源，以保证载波信号的质量。
2
At last, an intelligentized testing instrument for electric wire highfrequency carrier wave channels is developed.
在此基础上，研制开发出了一套智能化电力线高频载波通道测试装置。
3
Ultrashort wave Electrotherapy Machine is an instrument which utilizes highfrequency electric energy of ultrashort wave to act on human's organism for treatment.