Unverified80% confidenceTradeoffTime unknown
稳固性与便利性权衡：电动自动开合的磁吸/夹持支架取放最方便但机械结构多故障率高，纯物理夹持稳固耐用但需双手操作，追求耐用选物理机构，追求便利选电动感应
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80%
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Long-term
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