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| 钢筋混凝土杆 | |||
| 混凝土支柱 | |||
| 混凝土电杆; 水泥电杆 | |||
| concrete pole: 12 phrases in 5 subjects |
| Electronics | 2 |
| Hydroelectric power stations | 1 |
| Rail transport | 2 |
| Technology | 6 |
| Telecommunications | 1 |
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