[數(shù)] 估計(jì)方差 estimation of variance: 估計(jì)方差estimation variance: 估計(jì)方差estimation of population variance: 總體方差估計(jì)estimation of variance of noise: 噪聲方差估計(jì)global estimation variance: 整體估計(jì)方差下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯