(a) = bolt, n.1 3 (now chiefly historical); (b) = bolt, n.1 7b.
| 单词 | θ163549 | 
| 释义 | society > armed hostility > military equipment > weapon > device for discharging missiles > firearm > parts and fittings of firearms > 			[noun]		 > breech > bolt (4)		 rifle bolt1849 (a) = bolt, n.1 3 (now chiefly historical); (b) = bolt, n.1 7b. bolt1859 A sliding metal rod in the breech mechanism of a rifle which opens and closes the bore and positions the cartridge. Subcategories:— 			bolt action			(2)		 | 
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