Midcourse phase的用法和样例：
例句
- This paper studies the implementation of intercepting satelliteby using proportional guidance in the midcourse.
运用比例导引实现对目标卫星拦截的中制导方法进行了研究。 - The simulation result shows that the influence of the midcourse guidance based on the inertial navigation on the missile's impact point is remarkable.
仿真结果表明，纯惯导中制导对洲际导弹落点精度影响比较大。
