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| pipe clay; terra alba | |||
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制管土 : 64 phrases in 11 subjects |
| Bridge construction | 4 |
| China | 2 |
| Earth sciences | 7 |
| Ecology | 2 |
| Electronics | 1 |
| Engineering geology | 2 |
| Hydroelectric power stations | 2 |
| Name of organization | 1 |
| Oil / petroleum | 1 |
| Technology | 41 |
| United Nations | 1 |
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