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| 蜗轮蜗杆: 76 phrases in 10 subjects |
| Agriculture | 6 |
| Automobiles | 24 |
| Drilling | 1 |
| Electric machinery | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Technology | 39 |
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