The trajectory reconstruction not only makes up the trajectory in black-out area, but provides a complete set of reliable trajectory data.

通过弹道重建，不仅再现了黑障区的弹道，而且提供了可靠的、完整的弹道数据。

youdao

For reentry capsules of spacecraft, making up the trajectory in black-out area is a key link of aerodynamic analysis from flight test data.

对于飞船返回舱，黑障区弹道再现是再人飞行试验气动分析工作的重要环节。

youdao

There was an electricity black-out in a large area in the north of the country.

该国北方有一大片地区都停电了。

《柯林斯英汉双解大词典》