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测试 液 : 20 phrases in 10 subjects |
| Automobiles | 4 |
| Aviation | 3 |
| Drilling | 3 |
| Engineering geology | 1 |
| Mechanics | 1 |
| Metallurgy | 1 |
| Mining | 1 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 3 |
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