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离子交换 剂 : 146 phrases in 18 subjects |
| Agriculture | 8 |
| Animal husbandry | 2 |
| Biochemistry | 13 |
| Chemistry | 28 |
| Earth sciences | 1 |
| Ecology | 4 |
| Engineering geology | 1 |
| General | 8 |
| Materials science | 1 |
| Metallurgy | 31 |
| Nuclear physics | 1 |
| Oil / petroleum | 2 |
| Oil processing plants | 1 |
| Plastics | 5 |
| Polymers | 8 |
| Space | 2 |
| Technology | 23 |
| Water resources | 7 |
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