Contour Survey: Making thorough contour maps to help from the preparing and design of infrastructure projects. One of many most important applications of contour strains is to indicate floor elevation or depression. These lines are drawn on a topographic map and depict a certain vertical length or variance in elevation. https://contour-survey-in-dhaka99976.designi1.com/53574842/5-essential-elements-for-contour-survey-in-bangladesh