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- 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。
- 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
- 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。
- CONCERNING SIGNIFICANT INCREASE IN EXPOSURE DUE TO NATURAL RADIATION SOURCES 关注人类活动引起天然照射的增加问题
- The density logger consists of a radiation source. 密度测井仪包括辐射源。
- natural radiation source 自然辐射源
- 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?
- The one kind of industrial medium temperature radiation source. 一种工业中温黑体辐射源的研制。
- Is Medical Radiation Source the Measurement Apparatus? 医用辐射源是计量器具吗?
- The method of additive radiation source cajolery is studied. 推导水平面内制导精度的计算公 式。
- 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。
- The farther away that people are from a radiation source, the less the absorbed dose. 距离辐射源越远,所受剂量越少。
- The less time that people are exposed to a radiation source, the less the absorbed dose. 受到辐射照射的时间越短,身体所受的剂量越少。
- 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。
- Thermal imagery produces a visual record from natural heat radiating sources. 热图象由天然热辐射源产生一种可见的记录。
- Often used standard light source is synchrotron radiation source and wall stabilized argon arc source. 常用的光源标准如同步辐射光源和壁稳亚弧光源等。
- 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。
- Without any pollutive source and radiation source green environmental protection. 不含任何污染源和辐射源，绿色环保。
- Characteristic: With infrared radiation source, and average life of 5,000 hours. 特点：红外线辐射源。平均寿命5000小时。
