biological diagnosis

例句：

1. 1. The doctor performed a biological diagnosis on the patient to determine the cause of his illness.
   医生对病人进行了生物学诊断，以确定他的疾病原因。
2. 2. In this study, we used biological diagnostics to identify potential pathogens in the environment.
   在这项研究中，我们使用了生物学诊断来识别环境中的潜在病原体。
3. 3. The biologist conducted a biological diagnosis on the sample to help us understand its genetic makeup.
   生物学家对样本进行了生物学诊断，以帮助我们了解其遗传构成。