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- supersonic frequency telegraph 超声频电报
- The supersonic frequency HF heating device manufactured by our company has a field-proved and matured design. They are strong and durable. 本公司生产的超音频感应加热设备,技术成熟,可靠耐用。
- VFT? Voice Frequency Telegraph? 音频电报?
- speech plus voice frequency telegraph 语音加话频电报
- frequency modulated voice frequency telegraph 调频制音频电报
- frequency shift voice frequency telegraph 移频音频电报
- voice frequency telegraph terminal 音频电报终端机
- amplitude modulated voice frequency telegraph 调幅制音频电报
- voice frequency telegraph bearer circuit 音频电报承载电路
- frequency modulation voice frequency telegraph 调频音频电报
- voice frequency telegraph system 音频电报系统
- carrier frequency telegraph terminal 载频电报终端机
- frequency-modulated voice frequency telegraph 调频音频电报
- The physics of supersonic flight. 超音速飞行的物理性质
- Have you taken supersonic aircraft? 你坐过超音速飞机吗?
- Developing the supersonic jet was quite an accomplishment. 开发超音速喷气机是一项了不起的成就。
- VFT? Voice Frequency carrier telegraph Terminal? 音频载波电报终端?
- He varied the transmission frequency. 他变换了无线电传送的频率。
- The Navy also needed a supersonic fighter. 海军也需要一架超音速战机。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
