api blowback造句

The 30 mm MK 108 cannon was perhaps the apogee of API blowback technology during World War II.
Oerlikon even produced an anti-tank rifle firing 20?10mmRB ammunition using the API blowback operation, the synchronized fire through an aircraft propeller arc.
To increase performance of API blowback firearms, The last part of forward motion and the first part of the rearward motion of the case and bolt happen within the confines of this extended chamber.
The API blowback design permits the use of more powerful ammunition in a lighter gun than would be achieved by using plain blowback, and the reduction of felt recoil results in further weight savings.
According to Anthony G . Williams, the " API blowback principle is used virtually in all open bolt sub-machine guns " ( technically, although generally these are known as " simple blowback " weapons due to the very late ignition of the cartridge compared to specially designed API blowback guns like the MK 108 ), although " the relatively low pressures and velocities mean that extended chambers and rebated-rim cartridges are not required " for sub-machine guns.
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According to Anthony G . Williams, the " API blowback principle is used virtually in all open bolt sub-machine guns " ( technically, although generally these are known as " simple blowback " weapons due to the very late ignition of the cartridge compared to specially designed API blowback guns like the MK 108 ), although " the relatively low pressures and velocities mean that extended chambers and rebated-rim cartridges are not required " for sub-machine guns.