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| polybrominated biphenyls | |||
| polybrominated biphenyl A chemical substance the composition of which, without regard to impurities, consists of brominated biphenyl molecules (一种化学物质，不考虑杂质，包括溴化的联苯分子的构成。) | |||
| polybrominated biphenyl | |||
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| polybrominated biphenyl | |||
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| polybrominated biphenyl | |||
| 多 溴联苯: 4 phrases in 3 subjects |
| Chemistry | 1 |
| Electronics | 2 |
| Nautical | 1 |
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