资料来源 : pyDict

点火装置

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Portfire \Port"fire`\, n.
   A case of strong paper filled with a composition of niter,
   sulphur, and mealed powder, -- used principally to ignite the
   priming in proving guns, and as an incendiary material in
   shells.