绞筒一种向枪口逐渐变窄以防止射出子弹分散过开的猎枪枪膛

绞筒一种向枪口逐渐变窄以防止射出子弹分散过开的猎枪枪膛的英文翻译

基本释义

• A shotgun bore that narrows toward the muzzle to prevent wide scattering of the shot.