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| лучковая арка; сегментная арка | |||
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弧拱 : 18 phrases in 7 subjects |
| Automobiles | 1 |
| Construction | 2 |
| Electronics | 4 |
| General | 2 |
| Nautical | 1 |
| Oil processing plants | 1 |
| Technology | 7 |
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