 |
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| 安全守则 | |||
| 保安条例 | |||
| 安全技术规则; 安全规程 | |||
| 安全规则 | |||
| 安全条例 | |||
| |||
| 安全规定规则，法规 | |||
| 安全条例 | |||
| 安全规则 | |||
| 安全规章; 安全规程 | |||
| safety rules: 20 phrases in 10 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| China | 2 |
| Economy | 3 |
| Electronics | 3 |
| Exhibitions | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Metallurgy | 2 |
| Space | 1 |
| Technology | 4 |