escape velocity造句

1、At the event horizon, the escape velocity is equal to the speed of light.
在活动视界里，逃逸速度等于光速。

2、The gravitational field is so strong that the escape velocity near it exceeds the speed of light.
重力场是如此的强大以致于靠近它的逃逸速度超过光速。

3、A spaceship that reaches escape velocity is moving fast enough to break free of a planet's gravity.
太空船之所以能飞出地球，是因为其飞行速度很快，足以挣脱地球的引力。