| 摘要 |
When double boiling is needed in a scientific experiment, a process including the steps of preparing a beaker, a test tube, a clamp, etc., installing a clamp, injecting water to the beaker, injecting alcohol to the test tube, immersing a small portion of the test tube and heating the test tube is inconvenient. The process can be combined by using a round bottom flask of the present invention, which merges two round bottom flasks. |
