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a hollow steel column with an internal diameter of 248 mm has to support an axial load of 200 kn
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內容說明: a hollow steel column with an internal diameter of 248 mm has to support an axial load of 200 kn
檔案大小: 7926KB
時間長度: 13.400 sec
維度: 498x280
建立時間: 7/1/2020, 2:02:48 PM

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