Subway security staff then inspected the items, which turned out to be one 90-centimeter-long gun and one 15-centimeter-long gun and 50 rounds of ammunition.

地铁安保人员随后又检查了这些物品，发现了一把90厘米长和一把15厘米长的枪，另有50发子弹。

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The fatigue life and cumulative damage of ammunition feeding spring in automatic naval gun of medium calibre have been analysed.

本文研究了中口径自动舰炮输弹簧的疲劳寿命及损伤规律。

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Launching a certain amount of ammunition, it is easy to produce crack in the gun barrel and that will have effect on the security of fire.

火炮发射一定数量炮弹后，身管容易出现裂纹，从而影响射击安全性。

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He has pleaded not guilty to charges of illegally possessing the gun and ammunition.

BBC: SAS sniper Danny Nightingale to face retrial

North Las Vegas police said Brooks had a gun and ammunition in his car when he was arrested.

NPR: Freeway Chase Led To Ex-Nev. Lawmaker's Arrest

And even at its current price, both gun and ammunition compare favourably with alternative methods of dealing with dug-in gunmen.

ECONOMIST: Military technology