等值线 contour
等值线图 [数] [地物] contour map ; contour plot
等值线法 [测] isoline method
等值线地图 [测] isoline map
函数的交互等值线图 fsurfht
绘等值线图 pdecont
量等值线 M contour
自动绘等值线 automatic contouring
伪等值线地图 [测] pseudo-isoline map
伽马等值线图 gamma contour map
等值线 等值线
Contour line contour line
以上为机器翻译结果，长、整句建议使用 人工翻译 。
该等值线用于确定哪个等值面被提取。
This Isocontour is used to determine which isosurface is extracted.
youdao
但它们不一定是，某个以该向量场为梯度的函数的等值线。
But they won't be the level curves of a function for which this is the gradient.
梯度向量应该垂直于等值线。
The gradient vector would be going perpendicular to the level.
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