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| 扩张式井壁锚 | |||
| 扩胀锚杆 | |||
| 扩大式壁锚; 扩张式壁锚 | |||
| 膨胀锚固; 膨胀锚杆 | |||
| expansion anchor: 1 phrase in 1 subject |
| Hydroelectric power stations | 1 |
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