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| 表面 摩擦: 65 phrases in 15 subjects |
| Automobiles | 4 |
| Aviation | 7 |
| Bridge construction | 5 |
| Drilling | 2 |
| Electric machinery | 1 |
| Engineering geology | 3 |
| Measuring instruments | 1 |
| Metallurgy | 3 |
| Oil / petroleum | 3 |
| Polymers | 1 |
| Space | 3 |
| Sports | 1 |
| Swimming | 1 |
| Technology | 25 |
| Wind Energy | 5 |
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