gun pendulum

英 美
  • 冲击摆,枪摆,弹道摆
  • gun n.枪;炮;节流阀vt.枪击;打开节流阀vi.用枪打猎
  • pendulum n.摆锤;钟摆;摇摆不定
Noun:
  1. a ballistic pendulum consisting of a suspended gun; the velocity of a projectile in the bore of a gun can be measured by the recoil when the gun is discharged