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| couche de demi-absorption (in radiometry); épaisseur-moitié f (in radiometry) | |||
| couche de demi-atténuation (première, deuxième, ...); couche de demitransmission; épaisseur-moitié f; épaisseur d'intensité moitié | |||
| English thesaurus | |||
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| The thickness of an absorbing medium that will depreciate the intensity of a radiation beam by one half | |||
| half-thickness: 21 phrases in 5 subjects |
| Biology | 9 |
| Earth sciences | 6 |
| Mechanic engineering | 1 |
| Medical | 1 |
| Technology | 4 |