doublyadv.加倍地;双重地;二倍地
doubly heating furnace双重加热炉
doubly - fed machine双馈电机
doubly connected curve双连结曲线
doubly-fed generator双馈发电机
doubly-fed induction双馈感应发电机组
doubly teleseopie prop双伸缩立柱
doubly center matrices双中心矩阵
doubly curved reflector双弯曲反射面
doubly connected region双连通区域
doubly connected domain双连通域