phase modulation 调相†，相位调制
网络与数据通信 有线网络 释文 phase modulation, PM 相位调制
- flowering branch patterns
- flowering cherries
- flowering control
- flowering hormone
- flowering peach garden
- flowering period
- flowering phenology
- flowering plant
- flowering rapeseed
- flowering synchronization
- Flower in the Pocket
- Flower is a Go-between
- flower lantern opera of Wanzai County
- flower-lantern song-dance
- flower modeling and simulation
- flower mother bulb
- flower nursery
- flower of an hour
- flower of life
- flower of sulfur
- flower photography
- Flower Rain
- flowers
- Flowers and the Youth
- Flowers and Trees