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| 含毒物质 | |||
| 毒害性物质 | |||
| 有毒物质; 毒物 | |||
| poisonous substance: 6 phrases in 5 subjects |
| Agriculture | 1 |
| Automobiles | 2 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Technology | 1 |
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