doubleovt.细看n.巡视doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double carry双重进位double throw双掷double clear双拆线doublestatorn.双定子double ratio交比double-gap双火花间隙double Tiron工字铁double beveladj.双斜面的(K形的)double peaks双峰double edgedadj.双刃的(双炙砍痰默双刻度盘的；双重目的)