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| 支承加劲杆; 支撑加劲钢; 支承加劲肋 | |||
| 承重加强杆 | |||
| 承加劲肋; 承重加劲杆 | |||
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bearing stiffener : 6 phrases in 2 subjects |
| Bridge construction | 3 |
| Technology | 3 |
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