They're the gyroscope that stabilizes the rocket plane of state on its unswerving course.

他们是稳定国家这架火箭飞机，使之按轨道前进的方向陀螺仪。

How does his rocket plane work?

他的火箭飞机是如何工作的？

His Virgin Galactic rocket plane has taken off for a 1.5-hour mission which will see it reach an altitude where the sky turns black and the Earth's horizon curves away into the distance.

他的维珍银河火箭飞机已经起飞执行 1.5 小时的任务，它将看到它到达一个高度，在那里天空变黑，地球的地平线弯曲到远处。