arcograph

n.

圆弧规；

Arcograph.
The method of fractionating a circle into seven equal parts and drawing a conformal heptagon by arcograph
Identification of a Sinagua Agricultural Field by Aerial Thermography, Soil Chemistry, Pollen/Plant Analysis, and Archaeology
Innovated Design and Calculation of Gear Transient Curve
The catalog of human cytokeratins: Patterns of expression in normal epithelia, tumors and cultured cells
On Dynamic Multi‐Rigid‐Body Contact Problems with Coulomb Friction
Script, Counterscript, and Underlife in the Classroom: James Brown versus "Brown v. Board of Education.".
Reflection of acoustic waves at a water–sediment interface
Alpine tectonics — an overview
Guild-Structure and Evolution of Mesozoic Benthic Shelf Communities