radon的例句大全

the paper discusses mainly the essential theory of time-frequency analysis method and two important tools: wigner-ville distribution, radon-wigner transform that applies to the time-frequency analysis method.

本文重点研究讨论了时-频分析法的基本理论及适用于时-频分析法的两个重要工具：维格纳-威利分布和Radon-Wigner变换，并实现了它们在地震信号处理中的初步应用。

analysis of indoor radon source and hazard control

室内空气中氡的来源、危害及控制措施分析

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。

development of a method for simultaneous monitoring of respirable dust and radon daughters in mine

矿井作业场所中呼吸尘与氡子体同时监测的方法研究

natural surface water supplies generally carry little threat of human radiation contamination because radon volatilizes into the atmosphere.

天然的地上水供应一般带有极少的对人类有危险的放射性污染物。

eor estimates were similar to those in the extrapolations from miner data and consistent with residential radon studies in north american and europe.

此估算值与矿工数据外推值及北美和欧洲室内氡研究结果类似。

the cesium-radon period also includes the lanthanides, and the period beginning with francium includes the actinides.

铯一氡周期还包括镧系元素，以钫开始的周期包括锕系元素。

it is shown that the radium content is not completely relevant to radon exhalation rate from some building material.

结果表明，建筑材料中镭含量与氡析出率之间并不完全相关。

discussion on the monitoring of the building material radioactivity and the radon concentration in indoor air

建筑材料中放射性与住宅空气中氡浓度的监测

research of distribution rule of environment radon in qingdao city and prediction method

青岛市环境氡浓度分布规律与预测方法研究

survey of radon and thoron concentration in the inhabitants'living rooms of a village in the south area of yunnan

云南南部地区某村居民室内氡、钍射气浓度调查

concentrations of indoor radon and thoron in cave-dwellings with discussions on risk estimation of lung cancer

窑洞内氡、钍射气水平及致肺癌的危险评价

if granite, brick sand, cement and gypsum type, especially with radioelement natural stones, yi release radon.

如花岗岩、砖砂、水泥及石膏之类，特别是含有放射性元素的天然石材，易释放出氡。

store harm to the human body by radioelement radium 226 mainly from the decay of radioactive radon (radon and their sons body).

居室内对人体造成危害的主要是由放射性元素镭226衰变产生的放射性氡气（氡及其子体）。

concrete capillary phenomenon easy mold. cement ground disseminates harmful gases (radon and formaldehyde), conveying the noise

混凝土毛细管现象易生霉菌。水泥地面散发有害气体（氡及甲醛），传达噪音

the content of radon gas and methane bacteria indicates obvious abnormity above the gas pool.

气田上方氡气和甲烷菌的含量存在明显的异常。

the investigative results also show that the radon of hainan station is not sensitive to earthquakes in the regions of mid-east area of qilianshan mountain and henan county in qinghai province.

研究结果还表明，海南台水氡对祁连山中东段及青海省河南县地区的地震反映不敏感。

finally, some research subjects concerning the application of radon gas in metal ore prospecting are proposed.

最后提出氡气找金属矿的某些研究方向。

the sizing grid experiment of soil radon concentration measurement is carried out in majiatan~xinshanghaimiao area, ordos basin.

在民用建筑工程施工前，需要进行场地土壤氡浓度的测量。

avoid environmental hazards such as radon, asbestos and air pollution.

避免环境危害，减少对氡、石棉和大气污染的接触。