Unverified72% confidenceFactTime unknown
便盆开口内径建议在18-22cm，过大孩子有掉入或坐不稳的恐惧感，过小则臀部承托不足；内胆容量200ml以上可减少倾倒频次
1
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72%
Confidence
Long-term
Relevance
-
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