This paper discusses the characteristics of the radiological cloud after the RDD explosion, including the initial cloud size, material s distribution and the rate of particle or aerosol sedimentation.
本文在现有文献的基础上,分析了“脏弹”爆后放射性烟云的初始形态,物质分布状态和粒子与气溶胶的沉积特点等方面的描述,并给出了一些广泛应用的经验公式,这些对开展“脏弹”后果评估的研究,具有重要的参考价值。
The results indicate that the radioactive cloud released from the Chernobyl accident arrived to Beijing area on May 2, 1986. Generally speaking, the concentration of radioactive cloud in north China was greater than that in south China.
监测结果表明,切尔诺贝利核电站释放出来的放射性烟云于5月2日前抵 达北京地区。
Radionuclides in Soils，Fertilizers and Tobacco in Tobacco Planting Areas in Yunnan Province;
云南烟区土壤、肥料和烟叶中的放射性核素
The diffusion of radio-nuclides in atmosphere was studied on the basis of Gaussian Model.
在高斯烟羽模型的基础上，对核事故中放射性云团在大气中的扩散规律进行了研究。
radioisotope smoke alarm
放射性同位素烟雾报警器
Chalcolite ( crystallized phosphate of copper and uranium) is about twice as radioactive as uranium.
铜铀云母（铜和铀的磷酸盐结晶体）的放射性是铀放射性的两倍。
Pitchblende and chalcolite are much more radioactive than uranium itself.
沥清铀矿和铜铀云母比纯铀的放射性强得多。
By that time, the radioactive cloud had thinned out to such an extent that it was no longer visible.
那时，放射性云已稀释到再也看不见的程度了。
In its early stages the rain was augmented by the small water droplets still descending from the radioactive cloud.
开始时，从放射性云下沉的小水滴使雨势增大。
A green radioactive mineral that is a hydrous crystalline phosphate of uranium and copper.
铜铀云母一种绿色的放射性矿物，为铀和铜的氢化结晶云母
Smoking and passive smoking status in men and women of Yun county,Yunan province
云南省云县不同性别人群吸烟及被动吸烟调查
The intensity of a radioactive source.
放射性放射原的强度
The radioactive cloud reaches a height of several miles before spreading out abruptly into a mushroom shape.
放射性云在上升达几英里高度后才猛然散开成蘑菇状。
This method provides a potential tool to evaluate incloud lightning discharge parameters from lightning bipolar radiation fields.
这一方法具有估计云闪双极性大脉冲辐射过程的放电参数的潜力。
For underwater bursts at certain depths, the radioactive cloud may not be formed.
当在水下某一深度爆炸时，放射性云团也许不会形成。
PI3K/Akt Inhibitor Influence on Radiosensitivity of Adenocarcinoma of Lung Cancer Cell at Xuanwei, Yunnan Province;
阻断PI3K/Akt通路对云南宣威肺腺癌XWLC-05细胞的放射敏感性研究
active particles
放射性[活性]粒子
The sun shot its beams through the cloud.
太阳穿过云层放射出光芒。
The sun is shining through a break in the clouds.
太阳通过云层的缝隙放射光芒。