查询词典 radioactivity

Based upon monitoring results of radioactive materials in tunnel excavation construction in Qinling Tunnel the intensity of radioactivity and distribution regularities is summarized, meanwhile, preliminary assessment and research are conducted for radiation hazard and protection.

结合西康线秦岭特长隧道Ⅱ线平导开挖过程中对隧道放射性物质监测结果，针对隧道内放射性强度、分布规律进行了归纳、总结，并就其辐射危害及防护进行了初步评价和研究。

A radioactive isotope gradually loses its radioactivity and decays over time into the normal form of the substance.

放射性同位素逐渐丧失放射性，并逐渐衰变成该物质的正常形式。

The invention comprises a method of more efficient detecting of radioactivity from a low energy radioactive source and apparatus therefor.

本发明包括一种更有效地检测来自低能放射源的放射性的方法以及所用的装置。

The investigation on radioactivity level s of radioactive source storehouses and surrounding environment were conducted in logging CO.

对大庆测井公司放射源库及周围环境的放射性水平进行了调查，调查内容分为环境空气气溶胶辐射水平、水环境辐射水平、环境地表γ辐射空气吸收剂量率及土壤环境辐射水平四个方面。

Marie had linked the relationship between radioactivity to individual atoms in her first solo paper. The source of the radioactive energy. however, was still a mystery.

玛丽在她首先独自发表了论文中，关联了在放射性与单个原子之间的关系，然而元素放射性的来源仍然是一个谜。

The investigation on radioactivity levels of radioactive source storehouses and surrounding environment were conducted in logging CO.

对大庆测井公司放射源库及周围环境的放射性水平进行了调查，调查内容分为环境空气气溶胶辐射水平、水环境辐射水平、环境地表γ辐射空气吸收剂量率及土壤环境辐射水平四个方面。

The present environmental situation of radioactivity at the 90th Mine was monitored. The data showed that the envitonment in this mine had been radioactively pollutied.

通过对露天开采后的90号矿点放射性环境现状监测，数据表明，该矿点的环境已遭到放射性污染。

The recovery of the radioactivity was more than 88%.

关键步骤的放射性回收率在88％以上。

We have to learn to control radioactivity.

我们必须学会控制放射能。

You have to be very cautious when you are using the radioactivity..

你们使用这些放射性物质的时候一定要非常小心。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。