radon
导读：radon读音音标
英 [ˈreɪdɒn]美 [ˈreɪdɑn]
radon意思解释
n.氡（元素符号Rn）； 英英释义 radon[ \'reidɔn ]n.a radioactive gaseous element formed by the disintegratio
英 [ˈreɪdɒn]美 [ˈreɪdɑn]
radon意思解释
n.氡（元素符号Rn）； 英英释义 radon[ \'reidɔn ]n.a radioactive gaseous element formed by the disintegratio
radon读音音标
英 [ˈreɪdɒn]
美 [ˈreɪdɑn]
radon意思解释
n.
氡（元素符号Rn）；
英英释义
radon[ \'reidɔn ]
n.
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
同义词：Rnatomic number 86
词组短语
radon gas
氡气双语例句
用作名词(n.)Radon is the daughter of radium.氡是镭的子体。Where does the indoor radon come from?室内氡气是从哪里而来?
