| 单词 | l/s ratio |
| 释义 | L/S ratioL/S ratioObstetrics The ratio of lecithin–phosphatidyl choline to sphingomyelin, a 'bench' parameter used to determine infant lung maturity and predict the infant's ability to survive without developing respiratory distress. See Biophysical profile, Lung profile, Respiratory distress syndrome. |
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