Unverified80% confidenceDecision RuleTime unknown
儿童跳绳的手柄内需有轴承结构(滚珠或钢珠轴承),无轴承的实心手柄绳子易缠绕打结,钢丝包胶绳比棉绳/PVC绳更耐磨且不易随风飘
1
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80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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