肺毛细血管内气泡可能是引起动脉血气改变和血液浓缩的原因。
Gas bubbles in pulmonary capillary may be the cause of arterial blood-gas changes.
1984年2月29日，卡特成为美国四个主要血液制品公司中的最后一个获得美国授权，可以卖加热浓缩物的公司。
On February 29, 1984, Cutter became the last of the four major blood product companies to get US approval to sell heated concentrate.
结论应用改良超滤法可以迅速浓缩血液中的细胞和蛋白，在滤出水份同时，还能有效的去除多种有害中分子物质。
Conclusion Using modified ultrafiltration after cardiopulmonary bypass can concentrate blood cell and protein swiftly, and harmful medium molecular substances were filtered out at the same time.
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