form line

[′fȯrm ‚līn] (mapping) An approximation of a contour line without a definite elevation value, as one derived by visual observation, sometimes supplemented by measured elevations but not in sufficient quantity to produce accurate results; used principally to indicate the appearance of terrain which has not been accurately surveyed.

form line

Lines resembling contours, but representing no actual elevations, that have been sketched from visual observation, or from inadequate or unreliable map sources, to show collectively the configuration of the terrain. Whereas contours are drawn as continuous lines, the form lines are drawn as dotted or broken lines.

单词	form line
释义	form line form line [′fȯrm ‚līn] (mapping) An approximation of a contour line without a definite elevation value, as one derived by visual observation, sometimes supplemented by measured elevations but not in sufficient quantity to produce accurate results; used principally to indicate the appearance of terrain which has not been accurately surveyed. form line Lines resembling contours, but representing no actual elevations, that have been sketched from visual observation, or from inadequate or unreliable map sources, to show collectively the configuration of the terrain. Whereas contours are drawn as continuous lines, the form lines are drawn as dotted or broken lines.
随便看	laugh at the carpet laugh at them laugh at us laugh at you laugh away laugh away at laugh but not out loud laugh down laughed laughed about laughed all the way to the bank laughed at laughed at her laughed at him laughed at it laughed at me laughed at one laughed at the carpet laughed at them laughed head off laughed in face laughed sick laughed silly laughed so hard i almost peed my pants laughed so hard i had to change my shorts