XM1155加農砲用ラムジェット砲弾Name名無し20/05/29(金)22:58:41 No.1304627
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Raytheon Developing New Ramjet-Powered Artillery Round for U.S. Army
https://defpost.com/raytheon-developing-new-ramjet-powered-artillery-round-for-u-s-army/
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Source: 系まとめブログ
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