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hollow pier
| shaft
| hollow pier | |
| bridg.constr. | 空心墩; 空心桥墩 |
| shaft | |
| gen. | 一道 |
| el. sec.sys. | 转轴 |
| hydroel.st. | 柄; 轴 |
| met. | 心轴 |
| |||
| 空心墩; 空心桥墩 | |||
| 空心桥座; 空心桥台; 空心桥墩 | |||
|
hollow pier : 9 phrases in 2 subjects |
| Bridge construction | 7 |
| Technology | 2 |
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