gradeline

巷道腰线

词形变化

gradelines 复数 gradelines

别名

grade line

释义与例句

n.
  1. 1.

    A longitudinal reference line or slope to which a highway, railway, or other infrastructure is built. It defines the intended grade or slope of the structure, ensuring proper drainage, safety, and functionality.

词源

From grade + line.

来源：wiktionary