serum-dilution technique

例句：

1. 1. The researchers used the serumdilution technique to test the effectivenessof their new drug.
   研究人员使用血清稀释技术测试了他们新药的有效性。
2. 2. Thetechnician carefully followed the serum dilutiontechnique to prepare the samples for analysis.
   技师仔细遵循血清稀释技术准备样本进行分析。
3. 3. Duringthe experiment, the technician used the serumdilution technique to ensure accurate results.
   实验中，技师使用血清稀释技术确保结果准确无误。