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据大众科学网站报道,美国陆军研制出新型抵抗路边炸弹的84吨坦克样车。该新型地面战斗车辆的重量是被替代车辆—布雷德利战车的2倍。布雷德利战车可载6名士兵和3名动力人员投入战斗,而地面战斗车辆(GCV)可载9名士兵,这两种车辆都肩负着射击并摧毁敌方坦克的任务。但是,军方制造新的GCV是为抵御一种上世纪80年代研发布雷德利战车时没有的威胁——简易爆炸装置(IED)。新型坦克大尺寸的一个原因是,车内的士兵要想在爆炸中生存就需要足够的空间以便乘坐配戴装甲。额外的空间有助于分配爆轰压力和减少冲击。GCV另一个大尺寸的原因是配备比布雷德利战车较大的火炮——大约156 kg的30 mm加农炮MK44Bush
According to the website of Popular Science, the U.S. Army has developed a new 84-ton tank-like vehicle that will resist roadside bombs. The new ground combat vehicle weighs twice as much as the replacement vehicle, Bradley Chariot. The Bradley chariot can carry six soldiers and three power personnel into battle, while the Ground Combat Vehicle (GCV) can carry nine soldiers, both of whom have the task of shooting and destroying enemy tanks. However, the military has created a new GCV to combat the threat of a Breedley tanker development in the 1980s, the IED. One reason for the new size of the tank is that soldiers in the car need enough space to wear armor if they want to survive the explosion. Additional space helps to distribute the detonation pressure and reduce the impact. Another reason for the large size of the GCV is its larger artillery than the Bradley tank - about 156 kg of 30 mm cannon MK44Bush