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| surface de contact | |||
| station du contact | |||
| surface d'attaque | |||
| surface de support; surface d’appui | |||
| aire de contact | |||
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площадь контакта : 5 phrases in 4 subjects |
| Automated equipment | 2 |
| Mechanic engineering | 1 |
| Mining | 1 |
| Technology | 1 |
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