He accidentally shot himself in the foot.

他意外走火打中了脚。

The pistol discharged accidentally.

手枪走火了。

This paper introduced the design method of the ground anti-cookoff device of air machine gun , offering detailed hardware composings and software design scheme.

介绍了航炮地面防走火装置设计方法,并给出了较为细硬件组成及软件设计方案。