polydrafter

发音

US

词形变化

polydrafters 复数 polydrafters

释义与例句

n.
  1. 1.

    A polyform made by joining N-2 triangles edge to edge in various arrangements, each of these triangles being a right triangle with angles 30°, 60° and 90°.

    数学

词源

From poly- + draft + -er, from drafting triangle.

来源：wiktionary