radon

Typical methods of the first class consist of predictive deconvolution, normal moveout interconversion stacking, f-k transformation, tau-p transformation, parabola Radon transformation and beamforming. They can be called as seismography method based on the geometry.

比较典型的方法有预测反褶积、正常时差变换叠加、f-k变换、τ-p变换、抛物线Radon变换和聚束滤波等，它们可以简称为基于几何地震学方法或几何滤波类方法；

INTERNAL CAUSES OF RADON AND ITS DAUGHTERS UPWARD MIGRATION AND CLUSTER PHENOMENON.

氡及其子体向上运移的内因与团簇现象.

The theoretical distribution equation is established to describe radon migration and the results of calculation with the equation are satisfactory.

论文还建立了氡运移理论分布方程，应用该理论方程对运移实验数据进行了计算，取得了较满意的结果。

Research and test for depressing radioactive dust and radon daughters and radioactive aerosols in situ with the technique of supervoltage static electricity

应用超高压静电就地抑制放射性粉尘、氡子体与放射性气溶胶的试验研究

Radon concentration and its change in the NG used, starting from the source plant through transfer station. to the end users, has been investigated and measured during the four seasons of the year.

对北京天然气从气原厂、中转门站至末端作了一年四季氡的浓度及变化的检测观察。

The radon level in the basement was impermissibly high.

地下室的氡含量超标.

The radioactive dust will contribute to higher levels of uranium and radon.

放射性尘埃会形成铀和氡的高值.

Mould spores, pollen, radon, carbon monoxide and dander all lurk within homes, seeping through cracks in walls and floorboards, brought in on clothing or produced by wood burners, gas hobs and detergents used in cleaning.

霉菌孢子、花粉粒、氡、一氧化碳以及头皮屑都潜伏在家中，或从墙体和地板的裂缝渗出，或由衣物带入，或来自燃烧木头的火炉、燃气炉和清洁时使用的洗涤剂。

Radon concentration in groundwater was measured at 18 points including two continuous recording stations.

测量了包括两个连续记录台站在内共18个点的地下水的氡浓度.

A radioactive, inert, gaseous isotope of radon a half-life of 3.92 seconds.

氡的一种放射性的, 惰性的和气态的同位素,其半衰期为3.92秒.

Sections 301-311, added in 1988, relate to indoor radon abatement.

1988年增加的第301—311条, 涉及的是室内氧的控制问题.

But in two dimensions, Radon transform is not local.

但在二维平面上, Radon变换不具有局部性.

The theoretical concentration of radon in air was calculated applying the convection and dispersion theories, the content was 80.2Bq/m3 in average, which was approximately in accord with the measured value in field.

应用氡的对流和扩散理论，计算了空气中氡的理论浓度，平均值为80.2Bq/m3，计算结果与实测值基本吻合。

Scintillation flask method for measuring radon concentration in the air.

空气中氡浓度的闪烁瓶测量方法.

Huailai fourth well was equipped proper wellhead device after reconstruction, and solid tidal effect in gas radon have been observed.

怀4井在首都圈项目工程改造中，设计了较符合该井气氡观测的井口装置，改造后观测到了气氡固体潮潮汐效应。

The daughter nuclides of radon and thoron tend to become attached.

氡和钍射气的子体易被气溶胶吸附.

Analyses of radon emanation rate measured by the instrumentality of active carbon adsorption in a uranium tailings impoundment of Hengyang Uranium Mill

衡阳铀厂尾矿库活性炭吸附法氡析出率监测结果分析

Investigation of condition and method for measuring emanative radon content in water

水中放射性氡测定条件探索及其测定方法

There radon concentrations will severalfold to hundred times increasing when using spring water in the hotel rooms. 3.

氡浓度比没有使用温泉水时高出几倍甚至几百倍。

Radon-impermeable technique, mineralized water and free water analysis, and formation-sealing measures are adopted. All this keeps the pits stable for a long period of time. Test results show that pit specifications meet design requirements.

技术，矿化水、自由水分析及地层全密封措施，以保证放射性长期稳定，而且数据定值分析、测定结果数据与设计值相符。

Preliminary analysis of RADON-IN-SOIL in Tianchi Volcanic Area in Changbai mountain, Jilin Province

长白山天池火山活动区土氡含量测量结果初步分析

There is an acknowledged risk of lung cancer from radon.

氡被认为有诱发肺癌的危险。

A radioactive, inert, gaseous isotope of radon, with a half-life of 3.92 seconds.

锕射气氡的一种放射性的, 惰性的和气态的同位素, 其半衰期为3.

Radon is the daughter of radium.

氡是镭的子体.

According to continuous measurement the radon daughters potential energy, the deduction arithmetic is presented. And the theoretical formula, coefficient, calculation error, method of sampling and measurement, condition of calibration are given.

就氡子体潜能浓度的连续测量，提出了氡子体潜能浓度连续测量的扣除算法，并给出了相关理论公式、系数、计算误差、取样测量方法和刻度条件。

Radon is known to be harmful to humans in large quantities.

众所周知，大量的氡会对人体造成伤害。

Radon is known to be harmful to humans in large quantities

众所周知，大量的氡会对人体造成伤害。

Primary Analysis of Test Observation of Gas-Radon from the Liao Well No 1 at Xiaxian, Shanxi

山西夏县疗1井气氡试记观测浅析

The environment Radon logger FD 216 is an instantaneous surveying instrument in situ.

FD216型环境氡测量仪是在现场瞬时测量氡的仪器.

Objective Study on radon pollution in tunnel and protection from the radiation.

目的研究坑道内氡浓度及工作人员的氡防护.