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| 七氯有机氯杀虫剂。可防治多种害虫,但残毒可使人畜累积中毒，污染环境 | |||
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| 七氯有机氯杀虫剂 | |||
| 七氯化茚杀虫剂，C₁₀H₅Cl₇ | |||
| 别庚氯; 七氯四氢甲茚 (杀虫药) | |||
| 七氯 | |||
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| heptachlor | |||
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Heptachlor : 2 phrases in 2 subjects |
| Chemistry | 1 |
| Technology | 1 |
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