frequency spectrum
短语词组
- frequency following spectrum 頻率跟隨譜
- ultralow frequency dielectric spectrum 超低頻介電譜
- low frequency line spectrum 低頻線譜
- switching frequency spread spectrum 切換頻率展頻
- frequency modulation spectrum 頻率調制譜
- frequency -spectrum therapeutic 頻譜治療儀
- frequency hop spectrum communication 跳頻擴譜
- frequency response spectrum 頻率及應譜
- frequency relaxation spectrum 頻率松弛譜 返回 frequency spectrum