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| 竖旋桥的双翼; 开启桥的平衡装置; 衡重式吊仰开桥 | |||
| 吊桥活动桁架 | |||
| 平衡装置; 等臂杠杆 | |||
| 开合桥扇; 活动桁架 | |||
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bascule : 90 phrases in 5 subjects |
| Automobiles | 1 |
| Bridge construction | 13 |
| Construction | 2 |
| Port facilities | 2 |
| Technology | 72 |
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