contour-line等高线
topographic contour-line地形等高线
contour r line等高线
contour contour line等高线
contour-line division manufacturing method等高分割制造法
basic contour line基准外形线
zero difference contour line零差轮廓线
enamel contour line釉质外廓线;釉质外廓线英语
N（名词） a line on a map or chart joining points of equal height or depth 等高线 (Often shortened to contour)