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临界点的测定是一个高压的实验,它并不是一个新的问题。但有些学校由於这种实验比较繁杂,缺乏高压设备,因此往往不能进行这种实验。然而临界现象是不易体会的,为了正确的了解气体舆液体间变化的关系,避免对临界现象的错误理解,在教学过程中有必要给学生作这个实验。这里所介绍的仪器设计,是笔者为
The determination of the critical point is a high pressure experiment, it is not a new problem. However, some schools are often unable to conduct such experiments due to the complexity of such experiments and the lack of high-voltage equipment. However, the critical phenomenon is not easy to understand. In order to get a correct understanding of the relationship between gas and liquid, and avoid the misunderstanding of the critical phenomenon, it is necessary to make this experiment for the students during the teaching process. The instrument design introduced here is the author