| 1. | Place one of the negative records in the projector object plane . 将负片记录之一放入投影器的物平面内。 |
| 2. | General technical specifications of video projectors 视频投影器通用技术条件 |
| 3. | Overhead projectors - projection stages dimensions 投影器.投影台尺寸 |
| 4. | Factures about experiment transmission projector of gas joule law 气体焦耳定律实验透射投影器的制作 |
| 5. | Overhead projectors - methods for measuring performance characteristics 透射式投影器.性能特性.测定方法 |
| 6. | Diagnosis on the troubles of loader hydraulic system and its eliminating methods 投影器常见故障及排除方法 |
| 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. | - the holographic projector . - right -全息投影器-对 |
| 9. | The holographic projector . - right 全息投影器-对 |
| 10. | Principal distance of projector 投影器主距 |