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| hazardous chemical: 25 phrases in 10 subjects |
| Environment | 1 |
| General | 9 |
| International transportation | 1 |
| Law | 1 |
| Material safety data sheet | 2 |
| Production | 4 |
| Security systems | 2 |
| Technology | 3 |
| Tengiz | 1 |
| United Nations | 1 |
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