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| intrinsic spark-hazard safety | |||
| spark safety | |||
| intrinsic safety (in electrical engineering, technique used to limit electrical energy entering hazardous area to prevent ignition of flammable atmospheres). Alexander Demidov) | |||
| intrinsic safety | |||
| IS protection (Orya); Ex-i (Johnny Bravo) | |||
| искробезопасность: 10 phrases, 8 sujets |
| Armes de destruction massive | 1 |
| Contrôle qualité et normes | 1 |
| Informatique | 1 |
| Ingénierie électrique | 1 |
| Makarov | 1 |
| Pétrole et gaz | 3 |
| Sakhaline | 1 |
| Technologie | 1 |