breechblock造句

• The breechblock is shaped like a section of a circle.
• The underside of the breechblock is slotted to travel over the ejector.
• The 37 mm M5 gun had a manually operated breechblock.
• The hinged breechblock caused these rifles to be named " Trapdoor Springfields ".
• The machine gun uses a mixed Peabody Martini breechblock.
• The breech bushing bears interrupted threads for the breechblock.
• The breechblock is the main part of the mechanism.
• The DARD 120 uses a split breechblock system.
• By cocking the hammer, the breechblock can be rotated freely to reload the weapon.
• The Army removed the breechblocks and plugged the breeches before abandoning the guns in place.
• The gun had horizontal sliding breechblock, hydraulic recoil buffer and spring-driven recuperator.
• In late production pieces minor changes in breechblock, cradle and elevation mechanism were introduced.
• After the landing, the Marine officers are puzzled by the lack of breechblocks in the guns.
• The Hall rifles and carbines were loaded using a combustible paper cartridge inserted into the upward tilting breechblock.
• Prior to 1877, the breechblock had a high arch machined out of it, making it lighter.
• The gun had interrupted screw breechblock; hydraulic recoil buffer and hydropneumatic recuperator were both mounted under the barrel.
• Buttress threads have often been used in the construction of artillery, particularly with the screw-type breechblock.
• As the powder case cleared the top of the breechblock, the block would rise to seal the chamber.
• He is wounded, but manages to sabotage all the guns by removing their breechblocks, saving many American lives.
• The breechblock starts back at the instant of discharge, carrying the empty cartridge case with assistance of the extractor.