double bar超棒眼
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double-reduction shaft复式减速轴
Double- stage RO water双反渗水透析
double-voltage control电压-电压控制
double-contrast method双比分析法
double lenticular screen双透镜荧屏
double cores in parallel平行双岩心
double-action revolver复机转轮
double current telegraph双流式电报
double composition grease复合润滑脂
double objects structures双宾语结构