[KongchangAI]
Unverified88% confidenceDecision RuleTime unknown

空包自重是核心指标:双肩妈咪包空包≤700g为轻量化合格线,≤500g为优秀;装满奶粉、水壶、尿布后总重常达3-4kg,空包每多100g都会累积负担

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