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| 防护门 | |||
| 堵水闸门 | |||
| 防护闸门; 安全闸门 | |||
| 保护波门 | |||
| 应急闸门; 防护闸 (门); 备用闸门; 安全闸 (门) | |||
| 防预闸门 | |||
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| 防护波门 | |||
| guard gate: 14 phrases in 5 subjects |
| Air defense | 4 |
| Hydroelectric power stations | 2 |
| Space | 1 |
| Technology | 6 |
| Water resources | 1 |
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