arcograph / ˈɑr kəˌgræf, -ˌgrɑf /

📖毕业后词汇弧形图弓箭手弧线图弧线仪

arcograph 的定义

n. 名词 noun

Geometry.

  1. an instrument for drawing arcs, having a flexible arc-shaped part adjusted by an extensible straight bar connecting its sides.