始裂变截面 fast fission cross section: 快中子裂变截面fast fission cross-section: 快速中子裂变截面fission cross section: 对裂截面; 核分裂截面; 裂变截面macroscopic fission cross section: 宏观裂变截面thermal fission cross section: 热裂变截面; 热中子裂变截面下载手机词典可随时随地查词查翻译