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・ Line-oriented programming language
・ Line-out (rugby union)
・ Line-out code
・ Line-replaceable unit
・ Line-spotted barb
・ Line-up (Battlefield Band album)
・ Line-Up (Graham Bonnet album)
・ Line-Up for Yesterday
・ LINE1
・ Line2
・ Line of Fire (song)
・ Line of Fire (video game)
・ Line of flight
・ Line of force
・ Line of Gennari
Line of greatest slope
・ Line of hereditary succession
・ Line of Property
・ Line of purples
・ Line of scrimmage
・ Line of sight (gaming)
・ Line of succession to the Bahraini throne
・ Line of succession to the Belgian throne
・ Line of succession to the Bhutanese throne
・ Line of succession to the Bruneian throne
・ Line of succession to the Danish throne
・ Line of succession to the Dutch throne
・ Line of succession to the former Albanian throne
・ Line of succession to the former Austro-Hungarian throne
・ Line of succession to the former Bavarian throne


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Line of greatest slope : ウィキペディア英語版
Line of greatest slope
In topography, the line of greatest slope is a curve following the steepest slope. It is always orthogonal to the contour lines. Mathematically it is determined by the gradient of the height, taken as a potential field, so the lines of greatest slope are analogous to lines of force.
If inertial forces and terrain roughness are set side, a ball rolling down a slope, or water flowing down, will follow the line of greatest slope.
The line of greatest slope has practical significance in map reading. In the terrain it often is better visible than the contour line, but knowing that it is orthogonal to the contour line, one can deduce the direction of the contour line from the line of greatest slope. The direction of the contour line is found on the topographic map.
==See also==

*Fall line (skiing)

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Line of greatest slope」の詳細全文を読む



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