bef

常见例句

Depending upon certain conditions there may ornot may bef ree elect rons in semi- conductors.
半导体是否存在着自由电子，这取决于某些条件。
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，表达人EPO基因裸质粒组的血清有明显的中和活性，可抑制BEF-2细胞的增殖。
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.
本文根据1957～1992年有关牛流行热的发病资料，应用灰色系统理论对其长期预测方法进行了初步探讨。