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| Radium n | |||
| English thesaurus | |||
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| Ra | |||
| radium: 205 phrases in 16 subjects |
| American usage, not spelling | 1 |
| Chemistry | 10 |
| Earth sciences | 2 |
| Environment | 1 |
| Foreign trade | 2 |
| General | 12 |
| Health care | 2 |
| Medical | 22 |
| Mining | 1 |
| Name of organization | 1 |
| Nuclear physics | 29 |
| Physics | 28 |
| Technology | 1 |
| Дозиметрия | 4 |
| Радиоактивное излучение | 72 |
| Радиография | 17 |