白はく地ち図ず

noun

outline map; blank map; base map

A map showing only outlines, borders, or basic features, without detailed labels or data; used for educational exercises, planning, or as a base layer.

• 地ち理りの授じゅ業ぎょうで白はく地ち図ずに国こく名めいを書かき込こんだ。