| 1. | The gradient of the function is always perpendicular to the contour lines.
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| 2. | This would mean that the contour lines of and are parallel here.
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| 3. | The rings showed as contour lines projected on the corneal tear film.
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| 4. | Contour ploughing orients crop furrows following the contour lines of the farmed area.
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| 5. | I want to now draw contour lines ( isopleths ) around these points.
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| 6. | A contour line is a line connecting places of equal elevation.
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| 7. | When maps with contour lines became common, the idea spread to other applications.
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| 8. | Topographic maps conventionally show topography, or land contours, by means of contour lines.
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| 9. | Suppose we walk along the contour line with 0 } }.
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| 10. | Here arable land remained up to the 45 meter contour line.
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मोबाइल