Unverified80% confidenceDecision RuleTime unknown
木质表面应做圆角倒边处理，边角R值过小（尖锐）的乐器在3岁以下摔碰时易划伤；选购时用手触摸鼓槌末端、响板边缘是否光滑无毛刺
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80%
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Long-term
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