Your cardiovascular system is an important and fragile group of structures that pumps nutrient - and oxygen-rich blood throughout your body.
你的心血管系统是一组重要而脆弱的结构，它输送你身体富含营养和氧气的血液。
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。
The writer thereby proposes that the system of dian originated from loan activity within the group categorized by blood and geographical area.
由此笔者提出了一个假说：典制起源于血缘—地缘集团内部的信贷活动。
Brennan's body changed blood group from o negative to o positive when she became ill while on drugs to avoid rejection of the organ by her body's immune system.
布伦南生病期间需服药来避免身体免疫系统对移植器官的排斥，其间她的O型血从阴性转为阳性。
Rh blood-group system: system for classifying blood according to presence or absence of the Rh antigen (factor) in erythrocytes.
Rh血型系统：按照红血球中有无Rh抗原(因子)而划分血液的系统。
Rh blood-group system: system for classifying blood according to presence or absence of the Rh antigen (factor) in erythrocytes.
Rh血型系统：按照红血球中有无Rh抗原(因子)而划分血液的系统。
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