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| безопасные условия труда (Employer's liability – a duty owed by an employer to employees to provide a safe system of work. LE Alexander Demidov) | |||
| система безопасных работ (Alexander Orlov); безопасная система работ (Alexander Orlov) | |||
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| Системы безопасности труда (bumblbee89) | |||
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Safe System of Work : 2 phrases in 1 subject |
| General | 2 |