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| 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 | |||
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| alpha radiation; α-radiation | |||
| ακτινοβολία-α: 13 phrases in 3 subjects |
| Earth sciences | 6 |
| Environment | 2 |
| Physical sciences | 5 |