补助等高线的英文

• supplementary contour

• 补助:    subsidy; supply needs; subsi ...
• 等高线:    contour; isoheight; isoline; ...
• 辅助等高线:    auxiliary contour line; extra contour; supplementary contour
• 又称“辅助等高线”:    )extra contour
• 等高线:    contour (line); isoheight; isoline; isohypse (line) (地形图上标高相等的点连成的封闭曲线)