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| 窄间隔〔间距〕的 | |||
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close-spaced : 14 phrases in 8 subjects |
| Agriculture | 1 |
| Drilling | 1 |
| Electronics | 2 |
| Engineering geology | 2 |
| Management | 1 |
| Polygraphy | 1 |
| Technology | 5 |
| Telecommunications | 1 |
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