negative reactivity
| margin
| negative reactivity | |
| nucl.phys. | 负反应性 |
| margin | |
| busin. | 成本与卖价的差额，毛利 |
| comp. | 容限 |
| golf. | 界限 |
| IMF. | 起始保证金; 保证金; 利润率 |
| interntl.trade. | 押金 |
| met. | 储备; 余地; 安全系数 |
| |||
| 负反应性 | |||
|
negative reactivity : 5 phrases in 2 subjects |
| Electronics | 4 |
| Nuclear and fusion power | 1 |