radioactive gas

More recently, a study of radon by a Johns Hopkins scientist suggested that people living with higher concentrations of the radioactive gas had correspondingly lower rates of lung cancer.

最近，约翰斯·霍普金斯大学（Johns Hopkins）的科学家进行了一项关于氡气的研究，结果表明，生活在较高浓度的这种放射性气体中的人肺癌的发生率相对较低。

the airborne radiomaterial is some radiomaterial which is carried by air or other gaseous medium. it is composed of radioactive gas and radioactive aerosol.

气载放射性物质是指由空气或其他气体介质所载的放射性物质，包括放射性气体和放射性气溶胶。

the explosion released a cloud of radioactive gas drifting from the tomsk-7 reprocessing complex.

爆炸致使托木斯克-7的回收处理设施释放出一个放射性气体云。

in this article, a continuous way for monitoring concentrations of β radioactive gas and the β radioactive aerosol in the air under special environment is introduced. the sensitivity, range and error of the measurement are analyzed.

本文介绍一种可用于特殊环境下空气中β放射性气体和β放射性气溶胶浓度的连续测量方法，重点对探测下限、测量范围和测量误差进行了分析。

the absolute measurement of the activity of the radioactive gas

放射性气体活度绝对测量

During those hours radioactive xenon gas built up in the reactor.

在这几个小时中,放射性气体氙在反应堆中聚集增多.

radon is a natural radioactive gas that occurs at higher than normal levels in certain parts of the u. s.

氡是一种天然的放射性气体，在美国某些地区浓度高于平均水平。

Radon is a gas that comes from the radioactive decay of radium in rocks.

氡是来自岩石中镭辐射衰变而产生的一种气体.

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。

An Improvement on Surveying Instrument and Method of Radioactive Gas in Environment

环境放射性气体测量装置与方法的改进

Radiological health protection standard for using sealed radioactive sources in oil and gas-fild logging.

油(气)田测井用密封型放射源放射卫生防护标准.

absolute measurement of radioactive gas concentration of~ ( 133) xe

~（133）Xe气体放射性浓度的绝对测定

Radiological protection standards for unsealed radioactive sources logging in oil and gas-field.

油(气)田非密封型放射源测井放射卫生防护标准.