Prostate - specific antigen ( PSA ) is a well characterized human prostate specific glycoprotein.摘要前列腺特定抗原 ( PSA ) 为一已经定性清楚之人类前到腺特定醣蛋白.Purpose : To study antigenic epitopes and expression of P glycoprotein.目的: 研究P糖蛋白抗原表位...
Firefighting is an inherently dangerous occupation.消防工作本身是一项危险的职业.Here, Elvis the heavy - duty, - engine helitanker shows off its firefighting skills for the Oshkosh crowd.在这里, 猫王的重型双引擎直升机,空中加油机炫耀的奥什科什人群的消防技能.Scope of ap...