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| 长度单位 | |||
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unit of length : 17 phrases in 8 subjects |
| Animal husbandry | 1 |
| Bridge construction | 3 |
| Chemistry | 1 |
| General | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Sports | 2 |
| Technology | 7 |
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