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| health and safety | |||
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健康与安 全 : 21 phrases in 11 subjects |
| Automobiles | 1 |
| Aviation | 2 |
| China | 1 |
| Drilling | 2 |
| Earth sciences | 1 |
| Environment | 8 |
| General | 1 |
| Hydroelectric power stations | 2 |
| Name of organization | 1 |
| Nautical | 1 |
| Perfume | 1 |
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