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| alpha-radiation | |||
| alpha radiation; alpha rays | |||
| alpha radiation A stream of alpha particles which are ejected from many radioactive substances having a penetrating power of a few cm in air but can be stopped by a thin piece of paper | |||
| α-radiation | |||
| radiazione alfa: 14 phrases in 5 subjects |
| Earth sciences | 1 |
| General | 1 |
| Measuring instruments | 1 |
| Physical sciences | 10 |
| Technology | 1 |