Unverified75% confidenceTradeoffTime unknown
伸缩段数越多可收得越短越便携，但节点越多刚性越差、末端晃动越大；日常训练选2-3段伸缩即可兼顾便携与稳定，追求极致便携（如便携旅行）才考虑4段以上
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75%
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Long-term
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