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| 缓释放肥料 | |||
| 控释肥 | |||
| 长效肥料 | |||
| 缓释肥 | |||
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| 缓释肥料 | |||
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slow-release fertilizer : 7 phrases in 3 subjects |
| Chemistry | 1 |
| Ecology | 4 |
| Technology | 2 |
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