[KongchangAI]
Unverified83% confidenceDecision RuleTime unknown

伸缩杆长度选择应使窗洞宽度落在杆可调范围的中段(约60-70%位置),不要接近最大拉伸极限;拉到接近极限时管壁咬合变短,承重和稳定性骤降

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83%
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Long-term
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