给定航线 meaning in English

set route

In this paper , we mainly optimize the flight profile of the aircraft , simulate the 4d - flight of them and research the application of sequence in arrival aircraft scheduling in terminal area . firstly , we create the mathematics models for simulating 4d - flight
本文主要对按给定航线飞行的航班的飞行剖面进行优化设计，模拟航班的四维飞行，同时对到达航班队列排序优化算法进行设计、研究和实现。