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| core-balance circuit-breaker; current-operated earth-leakage circuit-breaker; differential circuit-breaker | |||
| аварийный автомат: 19 phrases in 5 subjects |
| Makarov | 12 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
| Scuba diving | 1 |
| Technology | 4 |
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