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- background radiation feature 背景辐射特征
- The unwanted radiation is referred to as background radiation. 这种有害辅射称为背景辅射。
- According to the practical need of infrared surveillance system,the infrared radiation feature of missile and predigest model under the background of sea and sky was studied. 从舰载红外警戒系统的实际需要出发,针对海空背景下低空来袭反舰导弹目标,深入研究导弹的红外辐射特征,并建立其红外辐射简化模型。
- Image of the cosmic microwave background radiation (CMBR). 宇宙微波背景辐射。
- We believe this background radiation was generated when the universe was very young. 我们相信它们是宇宙初开后所残留的辐射。
- For their discovery of the blackbody form and anisotropy of the cosmic microwave background radiation. 大意是因为他们发现了宇宙微波背景辐射的黑体形式和各向异性。
- Recent advances in epidemiological investigation in the high background radiation area of Yangjiang, China. 阳江高天然放射性本底地区流行病学研究近况。
- The enhanced sensitivity of this detector requires that it be used in areas with low levels of background radiation. 这种探测器有更高的敏感度，因而要求它用于背景辐射水平低的地区。
- They had found the cool afterglow of the big bang: the cosmic microwave background radiation. 他们发现的是大霹雳冷却后的馀晖：宇宙微波背景辐射。
- Those of us who study the background radiation focus our attention precisely on what our colleagues try to ignore. 我们这些研究背景辐射的人，就是专门将大把精力放在同行想要忽略的东西上。
- Model of the power spectrum of the cosmic microwave background radiation (CMBR) by Prof M. 宇宙微波背景辐射功率谱模型。
- 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。
- To measure background radiation, we need subtle instruments; to measure beauty, we need alert intelligence and our five keen senses. 测量背景辐射，我们需要精密仪器；而衡量美，则需要动用我们的聪慧和所有敏锐的感官。
- 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
- The hot reference is usually a blackbody under environmental temperature,and the cold reference is Cosmic Background Radiation. 其中高温定标源采用处在环境温度下的黑体,低温定标源为冷空背景辐射。
- Objective To examine the pulmonary tuberculosis mortality risk of the residents in high background radiation area (HBRA), Yangjiang, China. 目的探讨天然放射性高本底地区居民肺结核死亡危险。
- Observations of the microwave background radiation, for example, are now sensitive enough to detect the slight blurring caused by IGM material. 举例而言，对微波背景辐射的观测已灵敏到可侦测IGM物质所造成的轻微扰动。
- To compare the different TIR radiation features, the homogenous solid material, PMMA being a case, has been studied as a contrast. 为比较分析岩石的撞击辐射特征，进行了以有机玻璃为例的均质体撞击实验；
- For examples, observation of the gravitational lens phenomenon and the scattering phenomenon produced by microwave background radiation and hot plasmas from galaxies clusters. 例如利用引力透镜现象及微波背景辐射与星系团的热等离子体造成的散射现象等等。
- Even 15 billion years or so after the Big Bang, echoes of that event still linger in the form of background radiation, only a few degrees above absolute zero. 大爆炸后的大约15亿年后，大爆炸的回声还没有消逝，它们以背景辐射的形式存在着，其温度大概只比绝对零度高几度。
