A.點(diǎn)估計(jì)B.線估計(jì)C.區(qū)間估計(jì)D.范圍估計(jì)
A.估計(jì)B.推斷C.分析D.研究
A.元件可靠性參數(shù)B.電氣參數(shù)C.網(wǎng)絡(luò)結(jié)構(gòu)D.運(yùn)行參數(shù)