The calculated length of a structural member is a very important conception in structural design, because it was used to control the instability of the member.
杆件计算长度是结构设计中的一个重要概念，与该杆件的稳定性控制有密切关系。
The calculated length of a structural member is a very important conception in structural design, because it was used to control the instability of the member.
杆件计算长度是结构设计中的一个重要概念，与该杆件的稳定性控制有密切关系。
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