膛线 Save Sign in to save words Traditional (Taiwan): 膛線 tángxiàn ㄊㄤˊ ㄒㄧㄢˋ rifling (helical grooves inside the barrel of a gun) Character by character 膛(táng)hollow space 线(xiàn)thread Other words read tángxiàn In the same tone 唐县 Often confused with tangxian 探险 A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0