test tube - Definition & Meaning | VisualLang Dictionary

a cylindrical glass or plastic tube used to hold, mix, or heat small amounts of liquids or gases in a laboratory settinga cylindrical glass or plastic tube used to hold, mix, or heat small amounts of liquids or gases in a laboratory setting

A test tube is a small, glass or plastic tube used in laboratories to hold, mix, or heat liquids and chemicals during experiments. It is usually cylindrical, with a rounded bottom and an open top. Test tubes are often used to conduct small-scale reactions or to observe changes in substances. They are typically held in a test tube rack to keep them upright and can be easily handled with test tube tongs or clamps when heated. Test tubes are commonly used in science classrooms, research labs, and medical testing.A test tube is a small, glass or plastic tube used in laboratories to hold, mix, or heat liquids and chemicals during experiments. It is usually cylindrical, with a rounded bottom and an open top. Test tubes are often used to conduct small-scale reactions or to observe changes in substances. They are typically held in a test tube rack to keep them upright and can be easily handled with test tube tongs or clamps when heated. Test tubes are commonly used in science classrooms, research labs, and medical testing.

例句

The scientist carefully added the solution to the test tube for the experiment.
科学家小心地将溶液添加到试管中以进行实验。
She used a test tube to mix the chemicals together in the lab.
她在实验室里用一个试管来混合化学药品。
The teacher showed us how to heat the liquid in the test tube safely.
老师向我们展示了如何安全地加热试管中的液体。