连续可变斜率增量调变 variable slope delta modulation: 可变斜率增量调制cvs continuously variable slope: 连续可变斜率continuous slope delta modulation: 连续斜率增量调制variable slop delta modulation: 可变斜率增量调制variable-slope pulse modulation: 变斜率脉冲调制下载手机词典可随时随地查词查翻译