1·For example, no matter how much a dancer wishes to leap off the floor and then start turning, the law of conservation of angular momentum absolutely prevents such a movement.
例如，无论一个舞者多么想要跳离地板，然后开始旋转，角动量守恒定律绝对阻止这样的动作。
2·Angular momentum is now in this direction.
角动量现在是在这个方向。
3·Angular momentum is in this direction.
角动量是这个方向了。
4·So, for two skaters of the same mass rotating at the same speed, the one with its mass more extended in space will have the greater angular momentum.
因此，对于以相同速度旋转的两个同质量选手来说，肢体在空间中更为外扩的那个选手将具备更大的角动量。
5·That means if there's torque, there's a change of angular momentum.
这意味着，如果那有一个力矩，就会有角动量的改变。
1·Impeller-type flowmeter in the years of practical application, its working principle is relatively simple, general talk about is the principle of angular momentum of fluid flow measuring device.
多年来，叶轮式流量计在许多领域得到了较多的实际应用，其工作原理比较简单，概括的讲就是应用流体动量矩原理测量流量的装置。