doubleword双字doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double logarithmic model双对数模型double zigzag connection双曲折联接double-layer structure双层组织double-dump meat mixer两面倾斗式肉料搅拌机double-base transistor双基极晶体管Double-tower structure双塔结构double minute chromosome双微染色体double chamber reservoir双室风缸Double Standard Stations双基准站double-ridge waveguide脊波导