blood culture medium

例句：

1. 1. Blood cultures are essential for the diagnosis of bacterial infections.
   血培养对于细菌感染的诊断至关重要。
2. 2. The laboratory technician prepared the blood culture medium for the patient's sample.
   实验室技术人员为患者的样本准备了血液培养基。
3. 3. The results of the blood culture medium were positive for bacteria.
   血液培养基的结果为细菌阳性。