Rn
英[ˌɑːr'en]
美[ˌɑːr'en]
- abbr.[化]元素氡的符号（=radon）RN.abbr.无线电导航(RadioNavigation)abbr.注册护士(RegisteredNurse)abbr.皇家海军(RoyalNavy)
详细释义
Noun:
-
a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health
-
a graduate nurse who has passed examinations for registration
相关词汇
- registered nurse 有证书的护士...
- radon 氡
【近义词】
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