Unverified80% confidenceDecision RuleTime unknown
支撑结构优先选钢丝弹圈或伞状收拢结构，避免纯塑料骨架——塑料骨架反复折叠3-6个月后易在折点断裂失去支撑力
1
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80%
Confidence
Long-term
Relevance
-
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