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| half-value layer (волны) | |||
| half-thickness; attenuation half-thickness (half-value layer, half-value thickness, first, second, ...) | |||
| half value depth; half value layer; half value thickness | |||
| half-thickness layer | |||
| half-value layer; half-value thickness | |||
| aluminium half-value layer | |||
| half layer | |||
| half-reduction layer; half-value layer (излучения); half-value thickness (излучения) | |||
| слой половинного ослабления: 23 phrases in 10 subjects |
| Biology | 2 |
| Electronics | 1 |
| Energy industry | 2 |
| Makarov | 3 |
| Medical appliances | 3 |
| Metrology | 3 |
| Military | 4 |
| Nuclear physics | 3 |
| Physics | 1 |
| Technology | 1 |