inert gases

• n. 惰性气体

英英释义

名词 inert gas:

1. any of the chemically inert gaseous elements of the helium group in the periodic table

例句

用作名词 (n.)

1. Helium and neon are inert gases.
   氦和氖为惰性气体。
2. It is not necessary to replace air with inert gas.
   不必用惰性气体置换空气。