ground screen

例句：

1. 1. The ground screen is a crucial part of the security system.
   地面屏幕是安全系统的关键部分。
2. 2. The engineer used a ground screen to protect the delicate equipment.
   工程师使用地面屏幕来保护那些珍贵的设备。
3. 3.The ground screen was designed to prevent any unauthorized access.
   地面屏幕的设计是为了阻止任何未经授权的访问。