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| flushing; spent acid removal | |||
| 排酸: 59 phrases in 14 subjects |
| Agriculture | 2 |
| Animal husbandry | 17 |
| Automobiles | 2 |
| Chemistry | 5 |
| Earth sciences | 1 |
| Ecology | 2 |
| General | 10 |
| Medical | 2 |
| Metallurgy | 1 |
| Nursing | 2 |
| Reproductive biology | 1 |
| Sports | 3 |
| Technology | 9 |
| Water resources | 2 |
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