差分四相相移健控
difference quarter phase shift keying
动物相相关因素
faunistic relation factor
二相相移键控
binary phase shift keying
5NP4GS3
bi-phase shift keying BPSK
二相相移键控信号
Biphase shift keying signal
BPSK signal
非换相相电流
Non-commutation Phase Current
分相相位差动
phase segregated current phase differential protection