doubleendadj.双端的(两端引出式)doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double-barrier双势垒double magnifier双重放大镜double interrupt双中断double crossover双叉渡线,复式转线轨道double-team it联合行动double resonatorn.双腔谐振器double spine saw复齿锯double surpluses双顺差Double coupon.双重折价卷.double-trackedn.双轨