When magnetic flux leakage (MFL) means is employed in nondestructive evaluation of gun muzzle, MFL signal contains noises.

采用漏磁法对炮管进行无损检测时，漏磁信号中含有噪声。

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Abdul Aziz, 33, told CNN's iReport that he saw a gun's muzzle flash at Sunday's parade but couldn't see who the shooter was.

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The geometry of nozzle causes the air to reach supersonic speeds and, as a result, the gun achieved a muzzle velocity of 406 meters per second, which is about Mach 1.23!

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He had rigged the .50-caliber machine gun on the turret with a propane system that generates the noise and muzzle flash of gunfire, without the bullets.

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