n.<美口>（尤指体重在5。5磅以下的）早产儿
It is a preemie.
这是一个早产儿.
By that statistics handles two set of preemie d 2, d 3 arterial blood P ( O 2 ) value, difference had notable.
二组d2 、 d3动脉血p ( O2 ) 值差异有显著性(Pa& lt;0.05).
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