释义 |
fel 英fel美fel COCA¹⁶²²⁰³BNC⁶³⁴⁹⁴ 基本例句 n. 胆汁abbr. 自由电子激光=free electron laser We have derived the formulas of harmonic spontaneous emission power density, small signal gain of this undulator FEL and the coupling coefficients between the electrons and the radiation field. 导出了这种新型摇摆场结构自由电子激光高次谐波的自发辐射功率密度和小信号增益公式。以及电子与辐射场的耦合系数的表达式。 cnki |