| 释义 |
- n.稀有气体；惰性气体
- 网络贵气体；高贵气体；贵重气体
1. | 惰性气体；稀有气体any of a group of gases that do not react with other chemicals. argon , helium , krypton and neon are noble gases . |
n. | 1. a chemically inert rare gas belonging to group 18 of the periodic table. Helium, neon, argon, krypton, xenon, and radon are noble gases. 2. a gas that does not react with other substances, from the group of gases that includes helium and neon |
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