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| 维修与测试 | |||
| 维修和测试 | |||
| 保养与试验 | |||
| maintenance and test: 21 phrases in 7 subjects |
| Automobiles | 1 |
| Aviation | 11 |
| Business | 2 |
| Electronics | 4 |
| Space | 1 |
| Technology | 1 |
| Telecommunications | 1 |
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