breechblock
/breech-blok/US // ˈbritʃˌblɒk //UK // (ˈbriːtʃˌblɒk) //
突破口,臀板,舷窗,臀部的障碍物
Definitions
n.名词 noun
- 1
Ordnance.
- : a movable piece of metal for closing the breech in certain firearms.
Examples
In the bore, pent in by the polished breechblock, is a cartridge which has failed in its duty.
Breechblock—a movable piece which closes the breech of a cannon.
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