基本解释幅度-相移键控同根派生 APSK相关词英汉例句APSK Absolute Phase Shift Keying 绝对相移键控APSK Amplitude Phase Shift Keying 幅相键控APSK Amplitude and Phase Shift Keying 振幅移相键控APSK modulation APSK调制Čapský 恰普斯基APSK更多例句