もっと例文: 1 2 3 4 5 6 7 8 9 10
- When the action is closed, a small metal button on the underside of the breech block is actuated by an arm surface extending from the sear.
- Externally the weapon resembles the NSV; however, the internal mechanism has been extensively reworked, changing from a horizontally pivoting breech block to a rotating bolt design.
- Once the ships were interned, their guns were disabled through the removal of their breech blocks, and their crews were reduced to 200 officers and enlisted men.
- Because of the pressure drop breech block can be opened in a self reloading firearm due to the recoil inertia generation by the movement of the projectile.
- Most of the cranked slide lay along the top of the barrel, with a short section projecting down behind the chamber to serve as the breech block.