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技术经济比较
| 原理
| 技术经济比较 | |
| bridg.constr. | technique-economy comparison |
| busin. | technical-economic comparison |
| railw. | technical-economical comparision |
| tech. | technical economic comparison; technic-economic comparison; techno-economic comparison |
| 原理 | |
| hydroel.st. | theorem |
| met. | fundamental |
| tech. | principle |
| 技术经济比较: 4 phrases in 3 subjects |
| Business | 2 |
| Economy | 1 |
| Hydroelectric power stations | 1 |
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