Nosing
01
台阶前缘, 台阶的圆边
the rounded or curved front edge of a step that extends beyond the riser, providing a safe and visually defined transition between steps
例子
The aluminum nosing on the steps provided a clear visual guide for descending the staircase.
台阶上的铝制梯级突边为下楼梯提供了清晰的视觉引导。



























