doublemakeadj.双闭合的doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double-lined type双直线型double filling duck双纬帆布double file control双文件控制double angle v belt双v形皮带doubles and singles双打和单打double loop antenna双环天线double bottom block双层底分段double poly process双层多晶硅栅金属氧化物半导体工艺double moral hazard双边道德风险double-slope roof双坡板架屋盖