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| 粒度百分比; 粒度频率 | |||
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size frequency : 16 phrases in 8 subjects |
| Agriculture | 1 |
| Desert science | 1 |
| Engineering geology | 2 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Hydroelectric power stations | 2 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Technology | 6 |
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