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предохранительная цепочка |
chain safety : 19 phrases in 14 subjects |
Automated equipment | 1 |
Automobiles | 1 |
Cinematography | 1 |
Construction | 1 |
Drilling | 1 |
Electronics | 1 |
General | 2 |
Geology | 1 |
Makarov | 2 |
Mining | 1 |
Oil / petroleum | 2 |
Oil and gas | 3 |
Rail transport | 1 |
Trade unions | 1 |