rifler

rifler

美 　英

• 网络波纹锉；牙轮钻头；曲锉

例句

In French the word rifler meant to "scratch" and that's why the grooves inside a gun barrel are called rifling.

法语单词rifler就曾经有“刮”（scratch）的意思，这也就解释了为什么枪膛内的膛线被称为rifling。