| 释义 |
noble gas
基本英英词源近义反义例句
n.惰性气体
Noun:
any of the chemically inert gaseous elements of the helium group in the periodic table比喻用法。近义词 argonon惰性气体inert gas惰性气体
用作名词It is not necessary to replace air with inert gas.不必用惰性气体置换空气。
Helium is a monatomic chemically inert gas.它是单原子惰性气体。 |