No precipitate is formed if there is an extreme excess of antigen and in some systems, with an extreme excess of antibody . 如果在某些系统中，抗原极度过剩或抗体极度过剩，便不会形成沉淀。
Industry is turning its attention to the possible advantages that monoclonal antibodies may offer for the purification of biological extracts . 工业方面也开始注意到用单克隆抗体纯化生物提取物的优点。
Radioimmunoassy(ria)is one of the most sensitive tehniques presently available for the diagnosis of viral antigens or antibodies . 放射免疫试验（RIA）是目前适合于诊断病毒抗原或病毒抗体的最灵敏技术之一。
Vaccination with weakened or killed viruses arouses these antigens in exactly the same way, producing immunity without infection . 用减弱了的或者是死的病毒去接种，能同样地引出这些抗体，从而既产生免疫但又不发生感染疾病。
Anti tuberculosis antibody test and result analysis 抗结核抗体检测及其结果分析
To promote universal antenatal screening among 推广产前爱滋病病毒抗体普及测试。
Antibody date specification has antibody , quite good 抗体号说明有抗体，挺好的。
The influence of antiphospholipid antibody with pregnancy 抗磷脂抗体对妊娠的影响
Antibody is produced by the airframe after infection 抗体是被感染后机体产生的。
Sequence analysis of scfv gene for anti - alpha - toxin 毒素单链抗体基因的序列分析
