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, chest cavity), 线 = line. Literally 'bore lines' - the helical lines inside the barrel.
