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- natural radiation belt 天然辐射带
- How does natural radiation enter our body through the biosphere? 天然放射性物质是怎样经过生物圈进入人体?
- Of all the discoveries of the outer atmosphere made possible by rockets and satellites, few equal in importance the revelation of the high radiation belt by Van Allen in 1958. 在使用火箭和卫星对外层大气取得全部发现中几乎没有什么发现在重要性方面能与Van Allen在1958年发现的高空辐射带相提并论。
- In general, there are two kinds of radiation according to its origin: natural radiation and artificial radiation. 一般来说,辐射按其来源可以分为两大类:天然辐射和人工辐射。
- Natural radiation in the environment comes from two sources: cosmic rays and radiation present in the earth crust. 环境中的天然辐射有两大来源:一个是宇宙射线,另一个是存在于地壳的辐射。
- However, under certain weather conditions, there may be short-term variations of the ambient radiation level in Hong Kong due to natural radiation. 但在某些天气情况下,天然辐射会导致环境辐射水平出现短暂的变化。
- The Estimation of Doses to the Inhabitants Arising from Natural Radiation Source in the High Background Radiation Area of Yangjiang, China. 天然辐射源致阳江高本底辐射地区居民的剂量估算。
- Abstract BACKGROUND & AIM: To study the effect of smoking in different areas with different environmental mutagens including natural radiation. 摘要 背景与目的： 研究包括天然辐射等不同环境诱变因素地区居民的吸烟效应。
- Title： The Estimation of Doses to the Inhabitants Arising from Natural Radiation Source in the High Background Radiation Area of Yangjiang, China. 关键词：天然辐射源;高本底辐射地区;剂量估算;有效剂量;吸收剂量
- CONCLUSION: The effect of smoking seems to be suppressed by the environmental mutagens in Beijing as well as by the elevated level of natural radiation in HBRA. 结论: 外周血淋巴细胞染色体易位的吸烟效应似乎被北京地区的环境诱变因素或高本底地区高出对照地区的天然辐射所抑制。
- Radon and its daughters not only are the decay product of natural radioactive uranium series and thorium series, but also are one of natural radiation source. 氡及其子体是天然放射性系列中的铀系、钍系衰变产生的,是人类受天然辐射主要的来源之一。
- Moreover,the monitoring findings achieved by the environmental protection departments over the years have proved that the natural radiation level in Tibet is within the standards specified by the state's radiation protection regulations. 环境保护部门多年监测结果证实，西藏环境天然放射性水平在国家辐射保护规定标准内。
- One way to do this, scientists say, would be to deploy a fleet of satellites designed to inject radiation belts artificially with VLF waves. 科学家表示，达到这个目的方法之一，是发射一组人造卫星，朝辐射带发射VLF电磁波。
- They move under the influence of the dynamo currents in the Earth's core,as well as electric currents flowing in the ionosphere,the radiation belts and the Earth's magnetosphere. 它们在地核内发电机流以及流动在电离层、辐射带和地球磁气圈内电流的影响下产生移动。
- These devices are used in satellites that orbit the Earth within the Van Allen Radiation Belts and must be able to work in a continuous low-radiation environment. 这些装置用于在“范·艾伦辐射带”内沿一定轨道绕地球运行的卫星上,它们必须能在持续低辐射的环境中正常工作。
- Of all the discoveries of the outer atmosphere made possible by rockets and satellites ,few equal in lmportance the revelation of the high radiation belts by Van Allen in 1958. 译为:在所有借助火箭和卫星才能获得的对外层大气的发现中,在重要性方面很少能与范艾伦1958年发现高层辐射带相比。
- The Van Allen radiation belts that encircle our planet were temporarily eliminated, and huge numbers of protons and electrons were dumped into the upper atmosphere. 环绕地球的范艾伦辐射带暂时消失，大量质子与电子被灌入高层大气。
- They move under the influence of the dynamo currents in the Earth's core, as well as electric currents flowing in the ionosphere, the radiation belts and the Earth's magnetosphere. 它们在地核内发电机流以及流动在电离层、辐射带和地球磁气圈内电流的影响下产生移动。
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
