n. 速率,速度;周转率;高速,快速
网络 速率; 迅速; 流速
Acceleration and velocity are both vectors.
加速度和速度都是矢量。
Jaguars can move with an astonishing velocity.
美洲豹跑起来速度惊人。
I mean, that´s the whole point of escape velocity, right?
我的意思是,这是逃逸速度的全部意义所在,不是吗?
Once you have started the boulder rolling, it develops momentum, which is defined by its mass and velocity.
一旦你开始让巨石滚动,巨石就会产生动量,这是由其质量和速度决定的。
Simply stated, a gas molecule can "evaporate" from a planet if it reaches a speed known as the escape velocity.
简单地说,如果气体分子达到逃逸速度,它就能从一颗行星上“蒸发”。