1前言“临界现象”早在1822年就被CagniarddelaTour发现。当时是在大地筒中封人1/3高度的石块和酒精，加热升温。利用听炮身中石头运动所发出的声音变化来判断液相是否消失。之后，Andrews用CO2进行研究，提出了一直延用到现在的“临界点”概念。临界点的发现，对其后的科学发 1 Preface “Critical phenomenon” was discovered by Cagniard dela Tour in 1822. At that time, one-third of the stones and alcohol were sealed in the earth tube and heated to heat up. Judging whether the liquid phase has disappeared or not by using the change in the sound of the stone movement in the cannon body. After that, Andrews studied with CO2 and proposed the concept of “critical point” that has been extended to now. The discovery of the critical point, the subsequent scientific development