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| 结构物质 | |||
| 构造用材料; 建筑用材料 | |||
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structure material : 18 phrases in 7 subjects |
| Automobiles | 1 |
| Earth sciences | 1 |
| General | 3 |
| Securities | 1 |
| Shipbuilding | 1 |
| Space | 4 |
| Technology | 7 |
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