1
a contour line on [map]
表示等高线在地图上的位置.
The contour lines on the topographic map show elevation changes.
地形图上的等高线显示海拔变化。
等高线
contour lines — plural of contour line
先理解核心含义，再看它在真实句子里的用法。
等高线
a line on a map joining points of equal elevation or depth
The contour lines on the topographic map show elevation changes.
地形图上的等高线显示海拔变化。
等高线
A line on a map through points of equal elevation, often height above sea level.
On a topographic map, contour lines connect points of equal elevation.
在地形图上，等高线连接海拔相等的点。
The artist carefully traced the contour line of the vase before shading.
艺术家在涂阴影前仔细描绘了花瓶的轮廓线。
Hikers study contour lines to estimate the steepness of a trail.
徒步者研究等高线来估计小路的陡峭程度。
表示等高线在地图上的位置.
The contour lines on the topographic map show elevation changes.
地形图上的等高线显示海拔变化。
The surveyor drew contour lines to represent the terrain.
测量员绘制等高线以表示地形。
This is the contour line of 100 meters.
这是一条100米的等高线。
Not this
We need to draw the outlines of the mountain on the topographic map.
Use this
We need to draw the contour lines of the mountain on the topographic map.
地形图上表示海拔的线称为等高线（contour lines），而outline指物体的轮廓线，不能用来表示海拔。应使用contour lines。
Not this
The contour line on this map is very close to each other.
Use this
The contour lines on this map are very close to each other.
等高线通常有多条，因此应用复数形式contour lines，同时动词和代词也需相应改为复数。
Choose the next layer that will help you use contour lines with more confidence.
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Dictionary facts from ECDICT, WIKTIONARY.