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adaptive differential pulse code modulation	自适应差分脉冲码调制
adaptive pulse code modulation	自适应脉码调制
differential pulse code modulation	差分脉冲码调制
pulse-code modulation	脉冲编码调制
pulse code modulation-frequency shift keying	脉冲码调制一频移键控
pulse-code modulation-phase shift keying	脉冲编码调制相移健控
pulse-code modulation quality	脉冲编码调制质量
pulse-code modulation telemetry system	脉冲编码调制遥测系统
pulse-amplitude-code modulation	脉冲幅度编码调制