supercritieal fluid的用法和样例：
例句
- At pressures and temperatures greater than the critical point, carbon dioxide exists only as a supercritical fluid.
在压力和温度大于其临界点时，二氧化碳只可能以超临界流体形式存在。 - This paper reviews the mass transfer in supercritical fluid extraction of essential oil in recent years.
在众多超临界流体萃取植物种子油的研究中，传质方面的研究相时较少。
