a measuring instrument for measuring the area of an irregular plane figure
同义词：integrator
planimeter详细解释
pla.nim.e.ter n.（名词）An instrument that measures the area of a plane figure as a mechanically coupled pointer traverses the perimeter of the figure.测面仪：一种仪器，当机械连结的探针扫过平面图形的周线时能测出图形的面积 【引伸】 pla.nimet.ric pla.nimet.rically adv.（副词）planim.etry n.（名词）
