A state or condition in which the absence of immunological interference permits the grafting of tissue or the transfusion of blood without rejection.
组织相容性不同组织之间相互耐受的状，这种状使一种组织可以成功移植于另一种组织，或使输血列排斥反应
The injured man has lost a lot of blood and has to be given a transfusion.
那个受伤的男子失血过多，必须进行输血。
One who draws blood for analysis or transfusion.
放血医师为化验或输血而抽血的人
