dualinn.炸药的一种dualadj.双重的；成双的n.双数Dual bus network双总线网络dual-structure二元结构Dual Air Defence双防空dual feasibility对偶可行性dual-port SRAM双端口SRAMDual-mechanism双机制dual attestation二重证据法dual port memory双端口存储器dualistic phrase二元用语dual-host mode双宿主模型