群时延差
DGD
differential group delay DGD
adverbial clauses
Adverbial backed
differential group delay
群时延测试仪
group delay measuring set
全光受控时延系统
controlled all optical system for time delay
奇异时延系统
Singular time delay system
脉波延时调变
pulse duration modulation
路径延迟时间估计
path time delay estimation
临时延期的决定
interim determination of extention