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| 拱形暗渠涵洞 | |||
| 拱涵 | |||
| 拱形涵洞 | |||
| 券涵; 拱涵 (洞) | |||
| 拱形涵洞〔暗渠〕; 拱形涵洞 | |||
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arch culvert : 11 phrases in 5 subjects |
| Bridge construction | 2 |
| Economy | 1 |
| Hydroelectric power stations | 2 |
| Rail transport | 1 |
| Technology | 5 |
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