词汇	lasting time
释义	lasting time 持效时间
随便看	colo u r balance control colour balance con-trol panel colour balance filter colour balancing filter colour ball dance colour ball telescope colour band colour band indicator colour band method colour bar colour bar code colour-bar code colo u r bar code colour bar dot crosshatch generator colour bar generator colour-bar generator colo u r bar generator colour bar generator patter colour bar generator pattern colour bar pattern colour bar pedestal colour bars colour bar signal colo u r bar signal colour barsignal generator