Unverified80% confidenceDecision RuleTime unknown
桩体直径建议在3-4cm之间：小于2.5cm宝宝抓握困难且属于窒息风险尺寸，大于5cm则超出1-2岁手掌抓握范围导致敲击成功率低、易失去兴趣
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80%
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Long-term
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