Unverified78% confidenceFactTime unknown
三球式呼吸训练器(Triflo型)标准球重通常对应600/900/1200ml/s流速,儿童使用应选低流速刻度款,成人款流速阈值过高易导致孩子挫败
1
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78%
Confidence
Long-term
Relevance
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First Seen
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