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| English | French |
| actual focal spot | foyer électronique (of an X-ray tube) |
| effective focal spot | foyer |
| focal spot | tache focale (of an X-ray tube) |
| focal spot | foyer (of an X-ray tube) |
| nominal focal spot value | valeur nominale du foyer (of an X-ray tube) |
| spot contact | contact à pointes |