| 释义 |
ra·don 英ˈreɪdɒn美ˈredɑnAHDrāʹdŏn ★☆☆☆☆高ＭCOCA²⁰⁹³⁴BNC²¹⁸⁵³iWeb¹⁸⁴⁸⁸
基本英英词源搭配近义反义例句例句
n.氡¹⁰⁰简写符号Rn
化学
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 healthrad-,辐射，放射，-on,表惰性气体，词源同 neon.radon breath analysis呼吸中的氡含量分析…radon gas氡气
近义词 Rn化元素氡的符号=r…
名词100%
用作名词Radon is the daughter of radium.氡是镭的子体。
Where does the indoorradoncome from?室内氡气是从哪里而来? All that remained was to see whether this energy release more resembled that of gold reacting with mercury or with radon.
接下来要弄清的问题就是，释放的能量是否与金汞或金氡反应时释放的能量相同。 ecocn
Although the easier ionization of radon leads one to expect the most extensive chemistry for that element, the high instability of even the most stable isotope has severely limited studies of it.
氡容易离子化，这让人期望，该元素有最广泛的化学反应，但是，这个元素最稳定的同位素也极不稳定，这使氡的研究受到了严重的约束。 yeeyan
What is radon?
氡是什么？ who
Building codes should be implemented to reduce radon levels in homes under construction.
应采用建筑规范，在住宅建筑中减少氡的水平。 who
But some relativistic calculations suggested it might actually behave like a different element, the inertand non-metallic gas, radon.
但基于相对论进行的计算表明，它更像一种独特元素、惰性（非金属气体氡。 ecocn
Due to dilution in the air, outdoor radon levels are usually very low.
鉴于在空气中的稀释，室外的氡水平通常很低。 who
External environmental causes of cancer are factors in the environment that increase risk of cancer such as air pollution, UV radiation and indoor radon.
外部环境致癌因素是指环境中导致罹患癌症的危险升高的因素，如空气污染、紫外线辐射及室内的氡等。 who
For most people more than half of their natural background radiation dose comes from radon, a radioactive gas that can accumulate in homes, schools and workplaces.
对大多数人来说，他们自然环境辐射剂量的一半以上来自氡—一种可聚集在家庭、学校和工作场所的放射性气体。 who
In many countries, radon is the second most important cause of lung cancer after smoking.
在许多国家中，氡是继吸烟之后引起肺癌的第二种最重要病因。 who
More recently, researchers have sought to associate electromagnetic fields, the radon or hydrogen content of the soil and seismicity patterns with impending earthquakes.
最近，研究人员寻求把土壤中的电磁场、氡或氢含量以及地震活动格局，同即将发生的地震联系起来。 ecocn
Most of the radon- induced lung cancer cases occur among smokers.
氡引起的多数肺癌病例发生在吸烟者中。 who
Outdoor radon levels are usually very low.
室外的氡水平通常很低。 who
Overall, reducing radon exposure is an important contribution to the goal of good quality indoor air.
在总体上，减少氡接触对实现优质室内空气的目标具有很重要的作用。 who
Significant health effects have been seen in uranium miners who are exposed to high levels of radon.
在接触高水平氡的铀矿工人中观察到显著的健康影响。 who
That's a huge dose when you consider that each year we receive an average of2.4 millisieverts from natural sources such as radon.
这是一个巨大的剂量，因为我们每年从氡之类的天然源接收到的辐射平均只有2.4毫西弗茨。 yeeyan
The pair used a signal- processing technique called the Radon transform to create spectrograms of a variety of audio clips, each just half a second long.
二人使用一种被称为氡变形的单处理技术创造出多种音频片段组成的声谱图，每种只有半秒长。 yeeyan
The WHO fact sheets produced in the course of the Project will be a central communication tool to increase public awareness about radon.
项目过程中产生的世卫组织实况报道将是提高公众对氡认识的核心宣传工具。 who
These sources of water normally have much higher concentrations of radon than surface water from rivers, lakes and streams.
这些水源通常比河流、湖泊和小溪的地表水具有高得多的氡浓度。 who
To date, epidemiological studies have not found an association between radon in drinking water and cancer of the digestive and other systems.
迄今开展的流行病学研究未发现饮用水中的氡与消化系统及其它系统的癌症之间有联系。 who
Two other air pollutants require some mention: radon and asbestos.
另外两种空气污染需要某种提示：氡和石棉。 yeeyan
When inhaled, the radiation exposure from radon may lead to lung cancer.
当吸入之后，来自氡的放射暴露可导致人们罹患肺癌。 who
Radon, a product of the decay of natural uranium, also exceeded its proposed EPA maximum contaminant level in65% of wells tested 300 Picocuries per liter.
氡，是自然界铀元素衰变的产物，在被抽样的饮水井中，远远超标65%每升中含有300皮居里氡。 yeeyan
Radon, derived from naturally occurring uranium in aquifers, also occurs frequently at high levels in groundwater.
氡，从地下蓄水层中的铀元素中分离而来，经常以很高的浓度出现在地下水中。 yeeyan
Radon and asbestos.
氡和石棉。 yeeyan
Radon comes from radium decay.
氡来自镭的衰变。 yeeyan
Radon is a chemically inert, naturally occurring radioactive gas. It has no smell, colour or taste.
氡是一种天然产生的放射性惰性气体，它无色、无味、无臭。 who
Radon is a chemically inert, naturally occurring radioactive gas without odour, colour or taste.
氡是一种自然产生的放射性惰性气体，它无色、无味、无臭。 who
Radon is a natural radioactive gas that emanates from the ground into the air.
氡是一种放射性的自然气体，从地下散发到空气中。 who
Radon is the second most important cause of lung cancer in many countries.
在许多国家中，氡是肺癌的第二种最重要病因。 who
Radon levels are usually higher in basements, cellars or other structural areas in contact with soil.
氡水平在地下室、地窖或与泥土接触的其它结构区通常较高。 who |