This paper briefly introduces the basic type of over-stage machines,technical characteristics and maintenance of stage machines.Many typical over-stage machines,such as the powered flying bar system,side light cage,cu...This paper briefly introduces the basic type of over-stage machines,technical characteristics and maintenance of stage machines.Many typical over-stage machines,such as the powered flying bar system,side light cage,curtain system,safety curtain,acoustic shell etc are mentioned here.展开更多
文摘This paper briefly introduces the basic type of over-stage machines,technical characteristics and maintenance of stage machines.Many typical over-stage machines,such as the powered flying bar system,side light cage,curtain system,safety curtain,acoustic shell etc are mentioned here.