(来学网)对非显像测量仪器的时间稳定性,连续工作8小时,本底在要求范围内,计数率的最大百分偏差通常要求
  • A.
    (来学网)≤1%~3%/8h
  • B.
    (来学网)≤3%~5%/8h
  • C.
    (来学网)≤5%~8%/8h
  • D.
    (来学网)≤8%~10%/8h
  • E.
    (来学网)≤10%~15%/8h