Y形管因其形状酷似字母“Y”而得名。其看上去像两支试管,却又合二为一,正是由于其特殊的结构,才为许多化学实验的进行创造了便利的条件。在教学实践中,利用Y形管在原有教材实验的基础上进行改进或创新,提高了实验的实效性,增强了实验的对比性,增添了实验的观赏性。 The Y-tube is named for its shape resembling the letter “Y”. It looks like two test tubes, but merges into one another, precisely because of its special structure, for many chemical experiments to create a convenient condition. In teaching practice, the use of Y-tube in the original textbook experiment on the basis of improvement or innovation to improve the effectiveness of the experiment, enhance the contrast of the experiment, adding to the appreciation of the experiment.