sound film projector meaning in English
有声电影放映机
Examples
- Audiovisual , video and television equipment and systems . part 20 : methods of measuring and reporting the performance of 16 mm sound film projectors
视听视频和电视设备及系统.第20部分: 16mm有声电影胶片放映机的性能测量和报导方法 - Specification for audiovisual , video and television equipment and systems - methods of measuring and reporting the performance of 16 mm sound film projectors
视听视频电视设备及系统.第20部分: 16mm有声影片放映机性能测量和报告方法