This method can almost get unknown inputs attenuation to zero everywhere before the fault happening, then the system is approximately standard system without unknown inputs.
该方法使未知输入在故障发生前衰减到几乎处处为零，系统近似为无未知输入的标准系统。
A new optical attenuation standard device developing based on coherent detection principle is presented.
介绍了一种新的建立在相干检测原理上的光衰减标准。
In view of the higher computation accuracy of the attenuation standard of cutoff waveguides, the discussion of this paper paid more attention to the cutoff region.
鉴于截止波导衰减标准的计算精确度要求很高，本文的讨论重点放在截止区。
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