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| 安全手册 | |||
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Safety Manuals : 10 phrases in 8 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| General | 1 |
| Mining | 1 |
| Nautical | 2 |
| Navigation | 1 |
| Refrigeration | 1 |
| Technology | 2 |
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