Spacecraft which are re-entering the earth's atmosphere are affected by g forces.
重返大气层的航天器受到重力的作用。
《牛津词典》
2
During re-entry, most of the spacecraft will burn up while passing through the Earth's atmosphere.
在重新进入大气层的过程中,大部分航天器会在穿过地球大气层时燃烧殆尽。
3
In 1995 the Galileo spacecraft captured data about Jupiters atmosphere—namely, the absence of most of the predicted atmospheric water—that challenged prevailing theories about Jupiters structure.