“气体的”怎么读？

“气体的”的英语可以翻译为：aeriform，gaseous，[机] gassous，gassiness，gassy ...

该行业一直在努力开发一些可以替代这些气体的无害物质。Industry has been working at developing harmless substitutes for these gases.一种气体的密度the density of a gas你如何计量气体的体积？How do you measure the volume of a gas?...