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活 荷载 : 62 phrases in 16 subjects |
| Automobiles | 2 |
| Aviation | 2 |
| Bridge construction | 5 |
| Business | 1 |
| Commerce | 1 |
| Compressors | 2 |
| Construction | 1 |
| Electronics | 1 |
| Engineering geology | 5 |
| Hydroelectric power stations | 3 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 33 |
| Textile industry | 1 |
| Wind Energy | 2 |
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