In many cases, there is a reserve of oxygen left in the patient's blood and lungs, from the last breath, and we can take advantage of that oxygen reserve and just do chest compressions.
在很多案例中，在最后的呼吸中，有氧储备在病人的血液和肺中，我们可以利用那些氧储备而只做胸外按压。
The reason of excessive oxygen content in gas main pipe of two-stage water gas gasifier during hot reserve is analyzed, and improvement measures are put forward.
分析了水煤气两段炉热备阶段煤气总管中氧含量超标的原因，提出了解决措施。
The reason of excessive oxygen content in gas main pipe of two-stage water gas gasifier during hot reserve is analyzed, and improvement measures are put forward.
分析了水煤气两段炉热备阶段煤气总管中氧含量超标的原因，提出了解决措施。
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