A mechanical device used to control passage from one public area to another, typically consisting of several horizontal arms supported by and radially projecting from a central vertical post and allowing only the passage of individuals on foot.

• 十字转门一种用来控制从一个公共区域到另一个公共区域的通道的机械装置，典型的样子是从中心一根垂直的柱子上放射状地伸出几根水平的旋转臂，只允许个人走路通过