方法按国家标准(GB 6 5 6 6- 2 0 0 0)《建筑材料放射卫生防护标准》规定采样测定。
Methods to sample and determine according to Standard of Radiation Hygiene and Protection of Building Materials (GB6566-2000).
方法按国家标准(GB 6 5 6 6- 2 0 0 0)《建筑材料放射卫生防护标准》规定采样测定。
Methods to sample and determine according to Standard of Radiation Hygiene and Protection of Building Materials (GB6566-2000).
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