double saw复齿锯
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double objective function双目标函数
double lip retaining ring双唇扣环
double the tenor in brass使铜管乐器的次中音乐器高(或低)八度
double-disc cycloid gear双圆盘摆线轮行星传动
double- spiral structure双螺旋形结构
double-cylinder location双圆柱定位
double-hull bulk carrier双壳散货船
double paper double cotton双纸双纱色
double side-drift method双侧壁法
Double Certificates System双证制