| 释义 |
abbr- ① 【化】氡(从镭产生的放射性元素)(=radon)
同义词- RN
- atomic number 86
- radon
- registered nurse
词路径- entity
- physical entity
- matter
- substance
- chemical element
- element
- radon
- Rn
- atomic number 86
上位词- argonon
- chemical element
- element
- inert gas
- noble gas
- nurse
下位词- NP
- nurse-midwife
- nurse clinician
- nurse practitioner
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