doubledutyadj.两用的
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double-coiled lamp双线绕式电灯
double-peak method双峰法
double focus zooming双焦变焦
double-tape armour双带铠装
double-wave-band双波段
doublelength numeral双长度数字
double-thread worm双头蜗杆
Double Long-Memory分形分布
double plate sounder双板音响器
double-ridged horn双脊喇叭