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- natural radiation environment 天然辐射环境
- 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。
- 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?
- Meanwhile a long-term study known as the Martian Radiation Environment Experiment( MARIE) is under way. 同时，一项名为火星辐射环境实验（ARIE）长程计画也正在进行中。
- This paper deals with the problem of shielding against electron radiation from the radiation environment of geospace. 摘要该文探讨了在地球同步轨道辐照环境下对半导体器件的抗辐射屏蔽间题。
- 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。
- 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。
- Some Single Event Latchup experiments are performed.It is proved that the two systems can be applied in different radiation environment of various radiation sources. 实验结果表明，应用程序界面友好，使用方便，可用于多种辐射源下半导体器件单粒子闭锁效应的测试。
- 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。
- In the neutron radiation environment, low field resistance of bulk effect diode increases, working current and radio frequency output drop down,V-I characteriati cch-anges and even the negative resistance characteristic disappears. 实验观察到中子辐照环境中体效应二极管低场电阻变大,工作电流和射频输出下降,VI特性变化,甚至使负阻特性消失。
- Abstract： Putting forward the needs of radiation-resistance and reinforce of the whole FY -1C satellite, stand-alones and units, analyzing space radiation environment o f the satellite. 摘 要： 分析了FY-1C卫星运行轨道空间辐射环境，介绍了整星、单机、器件抗辐射要求。
- 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。
- Research on Electromagnetic Radiation Environment 电磁辐射环境研究
- Flight in a Radiation Environment 在辐射环境中飞行
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- electromagnetic radiation environment 电磁辐射环境
