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| 门形机架 | |||
| 门框 | |||
| 门架; 门式框架; 桥门架; 桥门框架 | |||
| 桥〔龙〕门架 | |||
| 门式架 | |||
| 门式构架; 龙门架 | |||
| 门式钢架; 门式刚架; 门式吊架; 门架框梁; 门式结构 | |||
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| 门架式 | |||
| portal frame: 64 phrases in 8 subjects |
| Automobiles | 1 |
| Bridge construction | 4 |
| Business | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Technology | 53 |
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