| |||
二次次级发射 | |||
再次发射 | |||
二次级排放 | |||
次级辐射; 次级发〔放〕射; 二次电子发射 | |||
二次【次级】辐射 | |||
二级发射 | |||
次级发射; 二次排放 | |||
二次发射 |
secondary emission : 56 phrases in 11 subjects |
Air defense | 4 |
Aviation | 1 |
Earth sciences | 1 |
Electronics | 25 |
Information technology | 1 |
Metallurgy | 1 |
Physics | 1 |
Radio | 1 |
Rail transport | 1 |
Space | 3 |
Technology | 17 |