Move down the slope to the next contour line. The interval of which depends on the slope of the field (see “Using the level in the field” under The Line Level and its use)
Tsikani mmunsi kupita pa mlambala wina. Kutalika kwake kumatengera kutsetsereka kwa munda (onani "kugwiritsa ntchito level mmunda" pomwe akukamba za Line level ndi kagwiritsidwe ntchito kake)