基本解釋n.微微秒同根派生 psec相關(guān)詞英漢例句Picosecond: One thousandth of a nanosecond. Measurement of computer processing speed. Abbreviated psec. 皮秒:千分之一納秒。量度電腦処理速度的單位。符號是psec。Objective To explore the surgical treatment of primary small-cell esophageal carcinoma(PSEC). 目的探討原發(fā)性食琯小細(xì)胞癌的外科治療方法。psec更多例句