Abo system: a classification system for human blood that identifies four major blood types based on the presence or absence of two antigens a and bon red blood cells.
abo血型分类法：一种人类血型分类方法，以红细胞上有无a和b两种抗原而分为四种血型。
As last year, the day will be celebrated on 14 June, the birth date of Karl Landsteiner, who discovered the ABO blood group system.
如同去年一样，这一天将于发现ABO血型系统的KarlLandsteiner的出生日期6月14日进行庆祝。
ABO blood is the most important blood-group system in transfusion and transplant practices.
ABO血型是输血和移植实践中最重要的血型系统。
ABO blood is the most important blood-group system in transfusion and transplant practices.
ABO血型是输血和移植实践中最重要的血型系统。
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