dualbeamadj.双射线的n.双电子束
dualadj.双重的;成双的n.双数
dual-pick-up synchro control双光头同步控制
dual system vocational education双元制职业教育
dual level fertilizer applicator双层施肥机
Dual Waveband Imaging Radiometer双波带图像辐射计
dual-rate moon position camera双速率月球位置摄影机
dual metric locally convex space对偶度量局部凸空间
dual-pattern light measurement双区测光
dual polarization spectrum reuse双极化频谱复用