基本解釋[數(shù)] 弱平穩(wěn)過程詞組短語短語weakly stationary stochastic process [數(shù)]弱平穩(wěn)隨機(jī)過程weakly stationary process更多詞組專業(yè)釋義數(shù)學(xué)弱平穩(wěn)過程