前不久,美国军方研究了一枚新式的训练用手榴弹,不但可以识别哪个士兵给“打中”,而且没有潜伏的杀伤力。 这种训练弹以坚实的橡胶代替实钢,大小形状和真手榴弹毫无二致,然而弹身是透明的,弹内藏有一枚以9伏特电池操作的闪灯。当手榴弹的撞针被拉出后,计时器立时开动让士兵有时间在 Not long ago, the U.S. military investigated a new type of training grenade that not only identifies which soldier is “hitting” but also has no potential lethality. The drill replaces solid steel with solid rubber, the size and shape of which are identical to those of a real grenade. However, the body is transparent with a flashing light containing a 9-volt battery. When the grenade's firing pin is pulled out, the timer starts immediately to allow the soldier time