dual PLC双可编程逻辑控制器
dualadj.双重的;成双的n.双数
dual in-wheel motors电动轮
dual-flow oil burner双流式油喷燃器
dual- use technology军民两用技术
dualistic value theory二元价值论
dual-drive back-up双机备份
dual-frequency laser双频激光
dual-purpose machine双用途装置
dual-receptor system双受体系统
dual-space algorithm双空间算法
dual standard receiver双标准电视接收机