Dualeh杜阿莱
dualadj.双重的;成双的n.双数
dual - period双周期
dual zone watch新型两地时间表
dual operations对偶运算
Dual-promoter双启动子
dualist symbols二元对立的象征
dual-catalystn.双功能催化剂
dual photometer双光度计
dualphase steel双相钢
dual-feedback双反馈
dual gyro pilot双陀螺驾驶仪