| |||
specific activity | |||
intensity of radioactivity per unit mass; ratio of activity | |||
| |||
specific activity |
比 活度: 15 phrases in 8 subjects |
Agriculture | 1 |
Chemistry | 1 |
Earth sciences | 1 |
Electronics | 7 |
Information technology | 1 |
Nautical | 1 |
Oil / petroleum | 1 |
Technology | 2 |