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| 地区保护费 | |||
| 地区保全费 | |||
| 地区维持费; 地域保全费 | |||
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area maintenance : 29 phrases in 11 subjects |
| Automobiles | 2 |
| Aviation | 4 |
| Business | 1 |
| Earth sciences | 2 |
| Ecology | 1 |
| Environment | 1 |
| Exhibitions | 1 |
| General | 4 |
| Metallurgy | 5 |
| Technology | 7 |
| United Nations | 1 |
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