P    #regions in PPM
# 2022-06-27 10:31:22 +0800  nmr@CZC345D12M
# low field   high field   mi   maxi
  0.0561331049453197  0.0488042920751199  0.000  10000.000  # for region 1
  0.0488042920751199  0.046703676921241  0.000  10000.000  # for region 2
  0.046703676921241  0.0284383250824945  0.000  10000.000  # for region 3
  0.0284283250824945  -0.081363826960243  0.000  10000.000  # for region 4
