The survey team marked each contour on the site map before the construction meeting.

測量團隊在施工會議前，把每條等高線都標在基地地圖上。

Our tour guide pointed to the contours on the trail map to show the steepest climb.

我們的導遊指著步道地圖上的等高線，說明最陡的爬坡路段。

The engineer emailed a revised plan with contours showing elevation changes across the warehouse lot.

工程師寄出修改後的平面圖，圖上的等高線標示出倉庫用地的高低起伏。