ㄆㄧㄥˊpíngㄇㄧㄢˋmiàn

  1. 任意直線相連處處與其密切接合平面平面直線曲線圖形」;形成交角平面」。立體

plane (flat surface)​, print media
plan (mathématiques)​
Ebene, Fläche; normal, gewöhnlich (S)​