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| 哈格曼因子; 海氏因子; 凝血第十二因子; 凝血因子 | |||
| 接触因子 (分生) | |||
| 接触因子 | |||
| 接触效率; 接触系数 | |||
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contact factor : 2 phrases in 2 subjects |
| Aviation | 1 |
| Chemistry | 1 |
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