As a type of special equipment, the construction of large-scale cranes is very difficult, especially the main beam camber control and the deformation control.
这种大型特种设备建造施工难度大，特别是主梁的上拱度控制、大型箱体结构的变形控制都较一般结构难度大。
As a type of special equipment, the construction of large-scale cranes is very difficult, especially the main beam camber control and the deformation control.
这种大型特种设备建造施工难度大，特别是主梁的上拱度控制、大型箱体结构的变形控制都较一般结构难度大。
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