短語詞組短語Base -width modulation 基區(qū)寬度調(diào)制;基極寬度調(diào)變base -width modulation factor 基區(qū)寬度調(diào)制因子IBWM inverse base -width modulation 逆基區(qū)寬度調(diào)制 返回 base width modulation