modulation demodulation的用法和樣例：
例句
- In recent years, new modulation techniques supported by other technological advances have helped BPL evolve.
近年來(lái)，新調制解調技術(shù)的進(jìn)步幫助了電力線(xiàn)寬帶網(wǎng)絡(luò )的發(fā)展。 - The main purpose is to study further in the constant envelope and Quasi-constant envelope modulations with high modulation efficiency.
主要研究適合深空信道傳輸的具有恒定或準恒定包絡(luò )的高效數字調制方式與直接序列擴頻相結合的組合調制解調方式。
