This article presents an analysis of a case study on the use of portal frame steel structures in construction. The focus is on the design, construction, and functionality of these architectural marvels, highlighting their strengths and challenges in various contexts.

• 1、英語翻譯請幫我翻譯一下這句話:"本文介紹

1、英語翻譯請幫我翻譯一下這句話:"本文介紹

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