常見例句雙語例句Depending upon certain conditions there may ornot may bef ree elect rons in semi- conductors.半導(dǎo)體是否存在著自由電子,這取決于某些條件。The serum from anemic rats treated with naked plasmid expressing human EPO showed obvious neutralizing activity to inhibit the proliferation of BEF-2 cells.在大鼠模型中,表達(dá)人EPO基因裸質(zhì)粒組的 血清有明顯的 中和活性,可抑制BEF-2細(xì)胞的增殖。On collecting datum of Bovine Epizootic Fever(BEF) from 1957 to 1992, a long periods of gray model was established for forecasting BEF by using gray theories.本文根據(jù)1957~1992年有關(guān)牛流行熱的發(fā)病資料,應(yīng)用灰色系統(tǒng)理論對其長期預(yù)測方法進(jìn)行了初步探討。 返回 bef