Unverified93% confidenceDecision RuleTime unknown
购买前需确认是脉冲流而非连续流：脉冲流在吸气时才供氧，标称的'升数'档位不等于连续流制氧机的实际升流量，不能直接对比
1
Sources
93%
Confidence
Long-term
Relevance
-
First Seen
Sources
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