平へい板ばん測そく量りょう

noun

plane-table surveying

A traditional surveying method using a plane table and alidade to map terrain directly in the field.

• 平へい板ばん測そく量りょうは、地ち図ず作さく成せいの古こ典てん的てきな手しゅ法ほうの一ひとつです。

  Plane-table surveying is one of the classic methods of mapmaking.