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| 材料强度 | |||
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material strength : 29 phrases in 8 subjects |
| Automobiles | 1 |
| Bridge construction | 4 |
| Business | 1 |
| Chemistry | 1 |
| Metallurgy | 9 |
| Rail transport | 1 |
| Shipbuilding | 1 |
| Technology | 11 |
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