It refers to the building envelope structure or decorative structure, which can be positioned and displaced by the supporting structure system relative to the main structure and does not share the role of the main structure. There are two kinds of walls: single-layer glass and double-layer glass. Glass curtain wall is a beautiful and novel decoration method of building wall, which is a remarkable feature of high-rise building era of modernism.

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拍攝者： Mengtianhan