A FATAL shooting incident involving twin sisters from Australia at a gun range in Colorado has left police baffled.
发生在一个射击训练场的澳洲双胞胎姐妹互射事件让科罗拉多警方摸不着头脑。
2
Its armament includes a Type 76f twin-37mm AAA gun, with a range of 8.5km for airborne targets.
它的武器装备包括一门76 F型双管- 37毫米aaa炮，具有对空目标8.5公里的射程。
3
The twin shear strength theory to compute the strength of gun barrels is used. The effect of strength-difference and axial stress are considered. The calculating result is more convinced.