优选词，正式主题词
Gas
定义
某概念特定涵义的完全解释- Gas is a compressible fluid, a state of matter that has no fixed shape and no fixed volume. (MatPortal, EMMO)
上位概念
上位概念其它语言
其它语言中概念术语- Gas
URI
https://purls.helmholtz-metadaten.de/skosmos/sdv/Gas