helium group gas
常見例句
- In a rocket as defined in claim 1, wherein said gas comprises a gas selected from the group consisting of nitrogen, helium and air.
在火箭所界定的索賠1 ，其中表示，天然氣氣體組成選自組成的氮，氦和空氣。
www.tech-domain.com - Noble gas( or inert gas ):Any of the six chemical elements that make up the rightmost group of the periodic table as usually arranged: helium, neon, argon, krypton, xenon, and radon.
稀有氣體（亦稱惰性氣體）：通常排列在周期律中最右邊一族的六種化學(xué)元素：氦、氖、氬、氪、氙和氡。 返回 helium group gas