常見例句雙語例句50 years ago, the first Chinese made alloy junction Germanium PNP transistor was born in the Semiconductor Laboratory of the Institute of Applied Physics, Beijing.50年前，中國自行研制的第一個晶體管在中科院應(yīng)用物理研究所半導(dǎo)體器件實驗室誕生。 返回 germanium alloy transistor