Falling-block action

（重定向自Falling Block）

A falling-block action (also known as a sliding-block or dropping-block action) is a single-shot firearm action in which a solid metal breechblock slides vertically in grooves cut into the breech of the weapon and is actuated by a lever.

单词	Falling Block
释义	Falling Block 原声例句 VOA慢速英语_美国 During the game, players move and join together seven different shapes of falling blocks. 在游戏中，玩家移动和连接七个不同形状的坠落积木。英语百科 Falling-block action （重定向自Falling Block） A falling-block action (also known as a sliding-block or dropping-block action) is a single-shot firearm action in which a solid metal breechblock slides vertically in grooves cut into the breech of the weapon and is actuated by a lever.
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