Stable Hall

穏堂───Stable Hall

The stage a safe, stable and reliable, widely used in halls, theaters, multi-function hall, hall, cultural and sports venues, hotels and other cultural entertainment.───使舞台安全、平稳可靠，广泛应用于会堂、影剧院、多功能厅、演播厅、文化体育场馆、酒店等文化娱乐场所。

Hall magnetometer can be used to measure stable magnetic field and the magnetic field changing with time.───霍耳磁强计可测量稳恒磁场及随时间变化磁场。