特种核材料 meaning in English

special nuclear material

Application of radiation monitors to the control and physical security of special nuclear material
特种核材料的控制和物理安全用辐射监控器的应用
Standard test method for nondestructive analysis of special nuclear materials in homogeneous solutions by gamma - ray spectrometry
射线光谱法无损分析均相溶液中特种核材料的标准试验方法
Therefore it should be planned carefully . the properties of snm ( nuclide mass , isotopic composition , distribution , matrix , etc . ) are significant to nda instrument response , these physical properties must be well known throughout the preparation procedure
因此，制备nda核标准样品必须非常仔细的计划，特种核材料的特性(核素的质量、成分、分布和基体)需要确切地知道。
Nondestructive assay ( nda ) techniques have become powerful tools for quantitative determination of special nuclear materials ( snm ) , and played an important role in nuclear material control and accounting ( mc & a ) , also in inspection of nuclear safeguards
无损分析( nda ： nondestructiveassay )技术已经成为定量分析特种核材料( snm ： specialnuclearmaterials )的重要工具，它在核材料控制与衡算( mc & a )方面以及在核保障核查工作中起着重要作用。