“等高线”造句

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.
Orthophotographs usually do not include contours as shown on topographic maps.

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