滴定管架

例句：

1. 1. The labtechnician carefully placed the pipette on thebeaker to make sure it was inthe right position for the titration.
   实验室技术员小心翼翼地将吸管放在烧杯上，确保它在滴定时处于正确的位置。
2. 2. During the experiment, thestudent observed the reaction carefully and recorded thedata accurately.
   在实验过程中，学生仔细观察反应并准确记录数据。
3. 3. After the experiment,the teacher analyzed the results and discussedthe significance of the experiment with the students.
   实验结束后，老师分析结果并与学生讨论实验的意义。