['reidɔn] 名词

radon m; émanation f; Em f; émanation du radium

radon m (a chemical element); émanation du radium (a chemical element); émanation f (a chemical element); niton m (a chemical element); radon 222; émanation de radium

radon A radioactive gaseous element emitted naturally from rocks and minerals where radioactive elements are present. It is released in non-coal mines, e.g. tin, iron, fluorspar, uranium. Radon is an alpha particle emitter as are its decay products and has been indicted as a cause of excessive occurrence of lung cancer in uranium miners. Concern has been expressed at radon levels in some housing usually adjacent to granite rocks or old tin mining regions ['reidɔn] 名词

环境

radon m

英语词库

Radon ['reɪdɒn, -dɑːn] 缩写

RADON ['reidɔn] 名词

Radon

: 37 短语, 17 学科

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