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| 活塞环切口 | |||
| ring end: 79 phrases in 13 subjects |
| Automobiles | 12 |
| Compressors | 3 |
| Computer numerical control | 1 |
| Electric machinery | 32 |
| Electronics | 3 |
| Mechanics | 1 |
| Nautical | 1 |
| Reproductive biology | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 20 |
| Textile industry | 2 |
| Wind Energy | 1 |
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