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| permanent fastening | |||
| permanent connection | |||
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永久 连接 : 21 phrases in 10 subjects |
| Agriculture | 1 |
| Aviation | 1 |
| Computer networks | 4 |
| Electric machinery | 1 |
| Electronics | 2 |
| Information technology | 4 |
| Plastics | 1 |
| Space | 2 |
| Technology | 2 |
| Telecommunications | 3 |
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