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(10~50kV)χ射线照射量副基准操作技术规范

O.T.N. or Exposure Secondary Standard for Energy (10~50kV) X-rays(A)
标准号:JJF 1347A-1990
O.T.N. or Exposure Secondary Standard for Energy (10~50kV) X-rays(A)
标准号:JJF 1347A-1990