Unverified85% confidenceDecision RuleTime unknown
手柄与绳连接处优先选360°轴承（滚珠轴承）而非普通塑料孔，轴承款甩动顺滑不打结，是竞速与花样的必要条件
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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