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变化 应力 : 30 phrases in 9 subjects |
| Automobiles | 1 |
| Bridge construction | 2 |
| Business | 1 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 6 |
| Nuclear and fusion power | 1 |
| Plastics | 1 |
| Technology | 16 |
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