| 1. | Hard rubber and fur are commonly used in demonstrations .
在演示中，常用硬橡胶棒和毛皮。 |
| 2. | The law of conservation of angular momentum may be demonstrated with a gyroscope .
角动量守恒定律，可以用回转器来演示。 |
| 3. | Photography with cine cameras is of value only for demonstration and entertainment purposes .
用电影摄影机摄影只有演示和娱乐的价值。 |
| 4. | Two-dimensional collisions, both elastic and inelastic, may be demonstrated on this table .
在这个桌上，可以演示二维的弹性和非弹性碰撞。 |
| 5. | These experiments suggest how different policy regimes cope with an uncertain world .
这些实验演示了政策体系是如何随着世界的变化而变化的。 |
| 6. | The effect is easily demonstrated using wood's technique which incorporates an evacuated glass bulb containing a bit of pure metallic sodium .
应用伍德的方法用一个抽空的盛着一点纯金属钠的玻璃泡，很容易演示这个效应。 |
| 7. | There is a free time - limited demo there
那里有一个免费（有时间限制）的演示版。 |
| 8. | T - s fuzzy modeling and control for nonlinear systems
基于智能决策的仿真演示系统 |
| 9. | Demonstrates how to display images in a tree view
演示如何在树视图中显示图像。 |
| 10. | Demonstrates how to determine whether a file exists
演示如何确定文件是否存在。 |
