主题：各种仪器指令比较

各种核磁谱仪操作指令比较整理:
(B) 表 Bruker; (J) 表 Jeol; (V) 表 Varian

1. number of scans:  ns (B);  scans (J);  nt (V)
2. spectral width:  sw (B);  x_sweep (J);  sw (V)
3. pulse width:  p1 (B); user defined (J);  pw (V)
4. time domain data size:  td (B);  x_points (J);  np (V)
5. delay:  d1 (B);  user defined (J);  d1 (V)
6. dummy scans:      ds (B);  x_prescans (J);  ss (V)
7. processed data size:  si (B);  none (J);  fn (V)
8. receiver gain:  rg (B);  recvr_gain (J);  gain (V)
9. transmitter offset:  o1 (B);  x_offset (J);  tof (V)
10. decoupler offset:  o2 (B);  irr_offset (J);  dof (V)
11. transmitter power level:  tl1 (B);  obs_attenuator (J);  tpwr (V)
12. decoupler power level:  dl1 (B);  irr_attenuator (J);  dpwr (V)
13. proton decoupler power level:  hl1 (B);  normal irr operation mode (J);  pplvl (V)
14. continous wave decoupling:  cw (B);  on irr.gate (J);  c (V)
15. homonuclear decoupling mode:  hd (B); module_config (J); homo (V)