词汇	mark match
释义	mark match 标记符合
随便看	underframe mounted traction motor underframe of coach underframes under-frames UNDERFRAMES for furniture under-frame-shear-wall underframe with center sill underframe without center sill underframe with sliding center sill underframing under free movement under-freight underfrequency under frequency under-frequency under frequency limiter under frequency limiterufl under-frequency loading shedding underfrequency load shedding under frequency load shedding under-frequency load shedding under frequency operation underfrequency protection under frequency protection Underfrequency Relay