contourn.周线；轮廓；等高线；概要；电路vt.画轮廓(画等高线)adj.显示轮廓的contoured plug进气道整流锥contour trench水平沟, 等高沟contouretchingn.外形腐蚀contour figure等高线图contour seamer无导轨缝纫机contour coding轮廓编码contour horizon标准层位contour tillage等高耕作contour traeing边界追踪contour pattern轮廓图形, 标志图形