cannelure background

cannelure

/ˌkænəˈlʊər/ /ˌkænəˈlɜːr/

Illustration cannelure - Image 1

noun

环槽，沟槽

A ringlike groove, such as that around the cylinder of an elongated bullet for small arms to contain a lubricant, or around the rotating band of a gun projectile to lessen the resistance offered to the rifling.

Examples :

"The ammunition expert pointed out the cannelure on the bullet, explaining that it helps hold lubricant, improving the gun's performance. "

弹药专家指出了子弹上的环状沟槽，解释说它有助于储存润滑剂，从而提高枪的性能。

technical military weapon machine part