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| natural material No definition needed (无需定义。) | |||
| natural materials | |||
| natural material | |||
| 天然 材料: 21 phrases in 10 subjects |
| Architecture | 1 |
| Cosmetics and cosmetology | 1 |
| Engineering geology | 1 |
| General | 1 |
| Hydroelectric power stations | 3 |
| Oil / petroleum | 1 |
| Polymers | 2 |
| Rail transport | 1 |
| Technology | 9 |
| Textile industry | 1 |
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