test tube rack

例句：

1. 1. The labtechnician needs to keep the test tube racks clean and organized.
   实验室技术人员需要保持试管架干净有序。
2. 2. The chemical engineer useda test tube rack to mix the chemicals.
   化学工程师使用试管架混合化学品。
3. 3. Thescientist placed the test tube rack on thetable and started the experiment.
   科学家将试管架放在桌子上开始实验。