P.P.S., p.p.s.

• abbr.
  • [拉丁语] post postscriptum 再附言,第二次附言 (=additional postscript)
  • parliamentary private secretary (英国)议会私人秘书
  • polyphenylene sulfite 【化学】聚苯硫

pps

• abbr.pulses per second 脉冲／秒