求翻译：展会展出了白雪公司新开发的3D弧形投影系统、背投融合系统、4K纳米高清银幕等。活动分为自由体验，技术交流和晚宴抽奖等环节。是什么意思？

The show features a 3d snow newly developed curved projection system, rear-projection fusion system, 4k nano-high-definition screen. Activities are divided into free experience, technical exchanges and dinner and prizes.

The exhibition will be on display at Snow White's new development of 3 D curved projection, Rear Projection System Integration System, 4 K nm high-definition screen, and so on. Activities are divided into free experience, technical exchanges and Dinner lucky draw.

Unfolded can display the 3D arc projection system, the back which the white snow company developed newly has thrown the fusion system, a 4K nanometer high clear silver screen and so on.The activity divides into the free experience, the technological exchange and the evening banquet draws and so on t

Exhibition new 3D snow company ARC projection systems integration, projection systems, 4K Nano-HD screens, and so on. Activities are divided into free experience, technical exchange and dinner raffle and so on.

正在翻译，请等待...