The package may be exposed in ambient room air which contains 20.8% oxygen, or immersed in an atmosphere of 100% oxygen.
包装物可以暴露在环境大气中，它含有20.8%的氧气，或者是浸在100%的氧气环境中。
There is insufficient evidence at present on which to recommend a policy of using room air over 100% oxygen, or vice versa, for newborn resuscitation.
婴儿出生时使用空气与氧气复苏的比较 通常推荐100％氧气用作婴儿出生时复苏的气体。
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