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 loop control双环控制
double weight paper厚纸
double-rate meter双费制电度计
Double serial ports双串口
double torsion test双力矩试验
double wire machine双线机
double quirk-head双槽圆线脚
double-face valve双面阀
double rotation arm双旋转臂
double-bed filter双层滤料滤池