膛线

膛線

tángxiàn

noun #37,051

Meanings

1 rifling (helical grooves inside a gun barrel)
2 rifle bore grooves

Characters

Examples

枪管里的膛线让子弹旋转飞行。

Qiāngguǎn lǐ de tángxiàn ràng zǐdàn xuánzhuǎn fēixíng.

The rifling inside the barrel makes the bullet spin in flight.

鉴定人员根据膛线痕迹比对子弹。

Jiàndìng rényuán gēnjù tángxiàn hénjì bǐduì zǐdàn.

Forensic examiners compare bullets based on rifling marks.

Tips

usage

Technical term in firearms and ballistics. Each barrel leaves a unique 膛线痕迹 (rifling pattern) on bullets — the basis for forensic firearm identification.

memory

膛 = bore/cavity (compare 胸膛 xiōngtáng, chest cavity), 线 = line. Literally 'bore lines' — the helical lines inside the barrel.

Stroke Order

膛 táng

线 xiàn