upward velocity

基本解释

The source example in Listing 1 shows a simple world with Mars' gravity and a sphere that currently has some upward velocity.
清单 1 中的源代码给出了一个简单的例子，这个环境中中存在火星的地心引力，里面有一个球具有向上的速度。
Given that the world has gravity, that upward velocity won't last long; eventually, the sphere reaches the apex and begins its descent.
由于这个环境中具有地心引力，因此向上的速度不会坚持很久；最后这个球会上升到顶点并开始下降。
On the consideration of only liquid flow friction and oil tube upward velocity, the calculation model of coiled tubing's setting depth is established.
文章在不考虑摩擦、只考虑液流产生的摩阻及油管上提作业时的上提速度等三种情况下，建立了连续油管下入深度的计算模型。