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。
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。
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