| 1. | For sand grains in water , the change in the direction of light is smaller than in air
在水里的沙，光的方向变动比在空气小。 |
| 2. | For sand grains in water , the change in the direction of light is smaller than in air
在水里的沙，光的方向变动比在空气小。 |
| 3. | " , we talked about the change in the direction of light i . e . scattering when hitting the sand grains
时提到光线射向沙粒时会改变方向即散射。 |
| 4. | A method where the direction of light passing through a crystal is changed using a high frequency sound wave
在那里光的指示过去的一种方法透过一颗晶片被使用高的频率声波改变。 |
| 5. | In this case , the change in the direction of light is very small in water light practically goes straight through the glass
在这事例中，在水中光的方向变化很小光基本上直穿过酒杯。 |
| 6. | In contrast , it is easier to see a glass held in air because some light is reflected from it i . e . a change in direction of light
在空气中容易见到酒杯是因为部分光被它反射而方向变化较大。 |
| 7. | In this case , the change in the direction of light is very small in water ( light practically goes straight through the glass )
在这事例中，在水中光的方向变化很小（光基本上直穿过酒杯） 。 |
| 8. | In contrast , it is easier to see a glass held in air because some light is reflected from it ( i . e . a change in direction of light )
在空气中容易见到酒杯是因为部分光被它反射而方向变化较大。 |
| 9. | " intelligent " lighting technique has developed rapidly , and has become one important development direction of lighting technique as intelligent architecture rises
“智能”照明技术随着智能建筑的兴起而迅速发展，成为照明技术发展的又一个重要方向。 |
| 10. | The fast - steering mirror is a device used to control the direction of light beam accurately , with great inertia mechanical structure , form a compound shaft tracking system which apply to drive and stabilize the light beam
快速控制反射镜是采用反射镜面精确控制光束方向的一种装置，与大惯量机架结构的主系统共同构成复合轴跟踪系统，在各种光学系统中用于对准和稳定光束。 |
