Their missile silos are below ground. 他们的导弹发射井在地下。
Despite the government’ s refusal to discuss the issue,several witnesses have also told of being stationed at military bases or near silos containing nuclear missiles when a UFO swung by. 尽管政府拒绝谈论这一事件，好几位目击者还是谈到他们被派驻军事基地或核导弹发射井附近时，曾看见有不明飞行物飞过。
