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| safety codes; safe codes | |||
| safe regulations | |||
| security code | |||
| safety regulation | |||
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| emergency decree | |||
| 安全 法 规: 13 phrases in 9 subjects |
| Automobiles | 1 |
| China | 3 |
| Economy | 1 |
| Electronics | 1 |
| Environment | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Refrigeration | 1 |
| Technology | 1 |
| United Nations | 1 |