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| 充水涵洞 | |||
| 灌水廊道; 进水涵管; 进水涵洞; 送水暗渠; 输水涵洞; 船闸进水涵; 充水廊道 | |||
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filling culvert : 8 phrases in 2 subjects |
| Bridge construction | 3 |
| Technology | 5 |
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