PB

• abbr.
  • power brake 机闸
  • passbook
  • pharmacopoeia Britannica [拉丁语]英国药典 (= British Pharmacopoeia)
  • Prayer Book 【宗教】《祈祷书》
  • Philosophiae Baccalaureus 哲学学士 (= Bachelor Philosophy)

Pb

• 【化学】铅(lead)的化学符号(由拉丁名 plumbum 而来)

p.b.

• abbr.passed ball(s)