| |||
| Mutternuklid n (head of a radioactive series) | |||
| Muttersubstanz f (head of a radioactive series) | |||
|
radioactive parent : 2 phrases in 1 subject |
| Radiation | 2 |
| |||
| Mutternuklid n (head of a radioactive series) | |||
| Muttersubstanz f (head of a radioactive series) | |||
|
radioactive parent : 2 phrases in 1 subject |
| Radiation | 2 |