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| airborne transmission | |||
| air borne infection | |||
| 空气 传播: 26 phrases in 12 subjects |
| Agriculture | 2 |
| Animal husbandry | 4 |
| Automobiles | 4 |
| Aviation | 1 |
| Desert science | 1 |
| Environment | 1 |
| Medical | 1 |
| Nuclear physics | 1 |
| Technology | 7 |
| United Nations | 2 |
| Virology | 1 |
| Wind Energy | 1 |
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