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 contractor ensured that the stair nosing was properly installed to enhance safety and durability.
承包商确保楼梯踏步前缘正确安装，以增强安全性和耐久性。
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。
