Height of instrument method is used for the reduction of levels. అవును. The distance of various points measured from the starting position P and మనకి ఏదైతే పైన ఇక్కడ diagram లో ఉందో, so
Height of instrument method is used for the reduction of levels. Avunu. The distance of various points measured from the starting position P and manaki edaithe paina ikkada diagram lo undo, so