 |
| |||
| encapsulated radioactive source | |||
| closed radioactive source | |||
| sealed radioactive source | |||
| sealed source | |||
| sealed radiation source | |||
|
source radioactive scellee : 2 短语, 1 学科 |
| 核能和聚变能 | 2 |
|
| |||
| encapsulated radioactive source | |||
| closed radioactive source | |||
| sealed radioactive source | |||
| sealed source | |||
| sealed radiation source | |||
|
source radioactive scellee : 2 短语, 1 学科 |
| 核能和聚变能 | 2 |