double tapph.
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double contrast examination双重对比检查
double binocular microscope双人双目显微镜
double airbridges technique双空气桥工艺
double reading milliammeter双向毫安表
double angle milling cutter双角铣刀
double-strand pig machine双链式铸铁机
double-pressure condenser双压凝汽器
double contrast radiography双对比X线造影(术)