?脉冲持续时间百分率

... percent harmonic distortion 谐波畸变率 percent make 脉冲持续时间百分率 percent of accuracy 准确度，精度 ...

?街占空系数

街占空系数 percent make 占空系数 activity coefficient; coefficient of charge; duty factor; duty ratio; occupati ..

?接通百分比

... 可懂率 percent intelligibility 接通百分比，脉冲占空比 percent make 百分率瓦数 percent rate wattage ...