| 1. | Set up the overhead projector in the meeting room
（准备好会议室的投影幻灯机。 ） |
| 2. | Complimentary one set of overhead projector with screen
免费提供一套投影仪和屏幕。 |
| 3. | Piano , overhead projector , basic lightings
三角钢琴，高影机，基本灯光 |
| 4. | Overhead projectors - projection stages dimensions
投影器.投影台尺寸 |
| 5. | Test transparencies for overhead projectors
高架放映机试验幻灯片 |
| 6. | Overhead projectors - methods for measuring performance characteristics
透射式投影器.性能特性.测定方法 |
| 7. | Overhead projectors - transparencies and transparency frames - dimensions
透射式投影器投影片和头影片框尺寸 |
| 8. | Muitimedia overhead projector and intensive reading of college english teaching
大学英语精读教学中的情感教育 |
| 9. | Movic and overhead projectors
投影幻灯设备 |
| 10. | Slide overhead projector
幻灯片放映及投影机 |
