The trace of the air gun shell breaking the glass is not the same as that of other rifled guns breaking the glass. This is because although the air gun has a rifling, it uses spring compressed air as the power to launch the warhead, with low speed, low energy and weight Light (the weight of each air gun shell is 0.5 grams), so when the air gun hits the glass, it has a long time to act on the glass, a small force, and a small penetrating ability. The most accurate recap of this passage is mainly. ['The trace of the air gun breaking the glass is different from the traces of other guns.', 'The trace of the air gun shell breaking the glass is different from the traces caused by other guns because it uses spring compressed air as the power.', 'Airgun bullet marks are easily recognizable.', 'The bullet marks of other rifled guns are also different from stone hit glass.']