许多商业公司和学术研究者对放射免疫检测法进行了调整，生产出了可以精确检测血液中乙肝表面抗原的设备。
Several commercial companies and academic researchers adapted the radioimmunoassay to produce kits for the accurate detection of HBsAg in blood.
放射免疫检测技术不但比凝胶扩散法简单，而且还比它灵敏上千倍。
Not only was it simpler than gel diffusion techniques, the radioimmunoassay was also a thousand times more sensitive.
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