As currently envisioned, each GBI missile will consistof two main components: a three-stage booster rocket and the ExoatmosphericKill Vehicle (EKV).

• 按照目前的设想，每一枚陆基拦截导弹(GBI)由两部分部件组成：一个三级助推火箭和大气层外拦截器(EKV)。