"We are building new missiles that will be capable of defending not only against air-defense systems but space-based systems," Gen. Alexander Zelin said.
“我们正在研发新的导弹，将不仅能够保护防空系统，而且能够防卫以空间为基础的系统，”Gen . Alexander Zelin表示。
2
The destruction of the defending obturation of all kinds of pipelines through walls and floors in civil air defense engineering under explosion shock waves is currently focused on.
爆炸冲击波作用下人防工程各种管道穿墙板构造部位防护密闭性是否受到破坏，是一个值得深入研究的问题。
3
A powerful air force plays an important role in defending the country.