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| 竖井式溢洪道 | |||
| 直井式溢洪道; 喇叭口式溢洪道; 竖井式溢洪道 | |||
| 直井溢洪道 | |||
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shaft spillway : 7 phrases in 2 subjects |
| Electronics | 1 |
| Technology | 6 |
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