Unverified88% confidenceDecision RuleTime unknown
低龄儿童优先选三角形或六角形杆而非圆杆,三角杆能自然引导三指握姿、防止滚落桌面,直径7-8mm适合小手抓握
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
Sources
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