常見例句雙語例句This paper studied the three-phase PWM(pulse width modulation) rectifier in dual PWM variable frequency speed regulation system.對雙PWM變頻調速系統(tǒng)中的三相PWM整流器及其控制方法進行了研究。Dual-PWM variable frequency speed regulation system includes PWM rectifier and PWM inverter; key technology lies in PWM rectifier.雙PWM變頻調速系統(tǒng)包括PWM整流和PWM逆變兩部分，關鍵技術在于PWM整流部分。 返回 dual-pwm variable frequency speed regulation