Double-E达宝易
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double optical path-replacement method双光路替换法
double-line and five-flight shiplock双线五级船闸
double cylinder circular hosiery machine双针筒圆袜机
double-walled carbon nanotubes bearing双壁碳纳米管轴承
double polarity pulse amplitude modulati双极脉冲幅度调制
double colour electro-engraving device双色电刻机
double-sided single-density diskette双面单密度软盘
double-rolling pipe-reducing machine双辊缩管机