The recoil of a gun is the simultaneous reaction to its explosive action.
一支枪的反冲（后坐力），是与它的爆炸“作用”同时发生的“反作用”。
2
In order to ensure the accuracy of firing and to shorten the operational reaction time, while performing ship-to-shore gun fire, naval gun needs to obtain the real-tine bias data of burst points.
One or two stage show down, the reaction of the audience is very bad, she went into a cyber cafe open web, online bristle skies, like knives like every gun!