单词	item sampling
释义	item sampling试题抽样
随便看	transformer effect transformer efficiency transformer electromotive force transformer e.m.f. [in an alternating or undulating or pulsed current commu-tator motor] transformer equivalent circuit transformer-fed system transformer feeder protection transformer for hand lamp transformer for toys transformer hum transformer indication panel transformer input voltage transformer iron transformer kiosk transformer lamination transformer lead transformerless transformerless power-supply transformerless signal path transformer load transformer load loss transformer loss transformer magnetic shunt transformer--matching technique transformer-- multiple sections