相位裕度是系统在变得不稳定之前可以容忍的程度的度量。
You may think using Google’s great, but I still think it’s terrible.
我不是政治家,我是表演者。但我有声音,我有平台。
Welcome, O life! I go to encounter for the millionth time the reality of experience and to forge in the smithy of my soul the uncreated conscience of my race.