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| 高炉大修 (【技】高炉炉衬破损严重，冷却器大量损坏，已不能继续维持生产，一代寿命结束，需要重新砌筑全部炉衬、更换冷却器并进行技术改造。此种情况即为高炉大修。【辨析】参见词条： reline。) | |||
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blast furnace reline : 3 phrases in 1 subject |
| Metallurgy | 3 |
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