1. By 2008, the noise level in urbanized areas will be reduced to meet the national standard and the electromagnetic radiation and radioactive environment will remain to be up to the national standard. 
   到2008年，城市建成区噪声基本达到国家标准，电磁辐射和放射性环境继续符合国家标准。
2. cyclotron radiation and synchrotron radiation 
   回旋加速器辐射和同步加速器辐射
3. thermal radiation and nonthermal radiation 
   热辐射和非热辐射
4. By 2008, the noise in the constructed urban areas should basically reach the national standard, the electric-magnetic radiation and radioactivity should be maintained complying with national standards. 
   到2008年城市建成区噪声基本达到国家标准。电磁辐射和放射性环境继续符合国家标准。
5. In fact, the three codes are standard ones extensively used worldwide for decades in nuclear reactor engineering design, nuclear reactor radiation shielding safety analysis and other fields of nuclear energy research. 
   事实上，这三个程序是国际上近几十年来在核反应堆工程设计、核反应堆辐射屏蔽安全分析等核能研究领域中广泛应用的标准程序。

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• 1. 辐射标准
  辐射能谱 radiation spectrum...辐射标准 radiation standard...辐射表面 radiation surface
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