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| инструкция по технике безопасности | |||
| Правила по технике безопасности | |||
| правила техники безопасности; правило техники безопасности | |||
| 安全技术规程: 6 phrases in 4 subjects |
| Electronics | 1 |
| General | 2 |
| Law | 2 |
| Oil and gas | 1 |
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