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| |||
| 交换性阳离子 | |||
| 可交换的阳离子 | |||
| 可交换阳离子 | |||
| exchangeable cation: 4 phrases in 4 subjects |
| Agriculture | 1 |
| Chemistry | 1 |
| Ecology | 1 |
| Oil / petroleum | 1 |
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