“等高线”的拼音？

“等高线”的英语可以翻译为：contour (line)，isoheight，isoline，isohypse (line) （地形图上标高相等的点连成的封闭曲线），contour line ...

刚好在450英尺的等高线之下有3个缓坡。There were three moderate climbs to just below the 450 feet contour.等高线是用等间距图解描述构造形态的.Contours are graphic expressions with uniform spacing depicting a structure's character.正射摄影象片一般不带像地图所表示的等高线....