目的 比较免疫磁珠法和密度梯度离心法分离纯化人外周血中性粒细胞的可靠性。
Objective To compare the reliability of immunomagnetic beads and density gradient centrifugation in purification and isolation of neutrophilic granulocytes from human peripheral blood.
她说将引起人类艾滋病的病毒与引起黑猩猩艾滋病的病毒相比较会产生在这两种物种中免疫系统反应的新见解。
She said that comparisons of the viruses that cause AIDS in chimpanzees and humans could lead to new insights into the responses of the immune systems in both species.
当一个人的免疫系统被削弱，患病的机会就比较大。
When someone's immune system is weakened, the chances of becoming sick are greater.
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