英语词汇“radon”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

WORD FAMILY

radon

USAGE EXAMPLES

Radon is a naturally occurring gas caused by the breakdown of uranium in soil and rocks, and is known to cause cancer.

Washington Times(Nov 18, 2016)

The stacks also can release large concentrations of radon gas.

Seattle Times(Oct 05, 2016)

Then, as now, ultraviolet radiation poured from the sun, and radon seeped from granite in the ground.

New York Times(Aug 22, 2016)

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

Syn|Hyper

Rn, atomic number 86

chemical element, element

any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter

argonon, inert gas, noble gas

any of the chemically inert gaseous elements of the helium group in the periodic table

单词	radon
释义	radon (once / 68717 pages) n WORD FAMILY radon USAGE EXAMPLES Radon is a naturally occurring gas caused by the breakdown of uranium in soil and rocks, and is known to cause cancer. Washington Times(Nov 18, 2016) The stacks also can release large concentrations of radon gas. Seattle Times(Oct 05, 2016) Then, as now, ultraviolet radiation poured from the sun, and radon seeped from granite in the ground. New York Times(Aug 22, 2016) 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 Syn\|Hyper Rn, atomic number 86 chemical element, element any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter argonon, inert gas, noble gas any of the chemically inert gaseous elements of the helium group in the periodic table
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