全电子电话交换机 full electronic telephone exchange; fully electronic telephone exchange
"查查词典"手机版
千万人都在用的超大词汇词典翻译APP
例句与用法
The structure and energy level of the al clusters include 2 atoms to to 7atoms was calculated with ab initio method . discrete energy levels were found in the clusters , which is different from the energy level distribution of bulk materials 计算方法是采用gaussia98程序的b3lyp的方法和全电子的基函数6 - 311 + g * ,对al2 ? al7小团簇的结构和能级进行了abinitio计算。