| 单词 | radon gas |
| 释义 | > as lemmasradon gas radon gas n. ΚΠ 1934 Science 17 Aug. Suppl. 8/2 Dr. Evans made his experiments merely to test his new method of detecting extremely minute amounts of radium and radon gas emitted by radium. 1992 Economist 29 Feb. 94/3 Other environmental hazards, such as radon gas in houses and cigarette smoke, pose far greater risks to health. 2000 A. Sayle Barcelona Plates 47 The urge to combat seeped up through the ground in these parts along with the radon gas. < as lemmas |
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