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| 磷块石; 磷矿石 | |||
| 磷灰岩 | |||
| 磷酸盐石 | |||
| 磷矿粉 | |||
| 磷块岩 | |||
| 磷灰石; 岩状磷钙土 | |||
| 磷酸盐岩; 磷酸岩; 磷钙土 | |||
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rock phosphate : 29 phrases in 9 subjects |
| Agriculture | 8 |
| Desert science | 2 |
| Earth sciences | 1 |
| Geology | 1 |
| Metallurgy | 2 |
| Nautical | 2 |
| Oil / petroleum | 6 |
| Soil science | 1 |
| Technology | 6 |
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