CD-ROM上13.5分钟的视频，题为“螺旋输送机、牵引输送机和斗式提升机安全视频”。该教学视频描述了人们在使用螺旋输送机、拖曳式输送机和斗式提升机及其周围工作时应遵循的关键安全实践。

A 13.5 minute video on CD-ROM entitled "SCREW CONVEYOR, DRAG CONVEYOR, AND BUCKET ELEVATOR SAFETY VIDEO". The instructional video describes key safety practices people should adhere to when working with and around Screw Conveyors, Drag Conveyors, and Bucket Elevators.