test-tube support

例句：

1. 1. The test-tube support is crucial for the stability of the experiment.
   试管支架对于实验的稳定性至关重要。
2. 2. The researcher used a special test-tube support to conduct their experiments.
   研究者使用一种特殊的试管支架来执行他们的实验。
3. 3. The new test-tube support has made handling fragile samples much easier.
   新的试管支架使得处理易碎样品变得更容易了。