plateletsn.小片状体；血小板名词platelet的复数形式.plateletn.血小板Platelet serotonin level血小板5-HT含量platelet-boundantibody血小板结合抗体platelet electrophoresis血小板电泳platelet wear down ratio血小板消耗率Platelet activate factor血小板活化因子platelet utivating factor血小板活化因子platelet suppressant drug血小板抑制剂platelet specific antigen血小板特异性抗原platelet aggregates ratio血小板凝聚率Plateletactivating factor血小板活化因子