id	keyword
fumecheng-10686	muzzle brake
fumecheng-10686	force
fumecheng-10686	efficiency
fumecheng-10686	brake efficiency
fumecheng-10686	recoil
fumecheng-10686	type
fumecheng-10686	projectile
fumecheng-10686	brake force
fumecheng-10686	results
fumecheng-10686	velocity
fumecheng-10686	recoil force