P    #regions in PPM
# 2022-06-09 08:52:04 +0800  nmr@CZC3047DS1
# low field   high field   mi   maxi
  4.56616023465509  4.53327397237746  0.000  10000.000  # for region 1
  4.05380132389613  3.97058875857898  0.000  10000.000  # for region 2
  1.25368125273689  1.2410426080468802  0.000  10000.000  # for region 3
  1.24103260804688  1.20849042955471  0.000  10000.000  # for region 4
