Unverified87% confidenceDecision RuleTime unknown
尺码看髌骨中心周长而非年龄：儿童体型差异大，选购时量膝盖中心一圈，弹性护膝拉伸后周长应为实测值的1.1-1.3倍，太紧勒血液循环、太松易下滑
1
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87%
Confidence
Long-term
Relevance
-
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