Large bridging machine是什么意思 Large bridging machine怎么读
Large bridging machine的相关资料
Large bridging machine的用法和样例
- The author then explains the basic principle of this project and lists problems to be settled while designing the bridge girder-erecting machine and girder vehicle.
经过多种方案的比较和分析，认为运梁车，架桥机施工方案为最佳。
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