Topographic Surveys: We map the contours and capabilities of one's land to help in planning and style and design for construction or progress tasks.Bangladesh Air Power can use digital map for flight simulation. Electronic topographic maps and databases are handy equipment for terrain analysis and conclusion building method. Electronic BAF charts c

_???? ????? ???????????? ????? [????????? ?????????? ????]??? ??? ?????? ?????? ???? ????? ???????? Textual content size A A A Colour C C C C ????????? ????? ???? ????? ??????????? ??????? ???????? ????????????????? ? ?????????? ????????? (????? ??????)??????? ???? ???? ?????????? ??????, ?????? ? ??????? ??????????;(?) ?? ???????? ??? ??????????

A soil scientist normally has to estimate soil texture though in the field or when laboratory info on the amounts of sand, silt, and clay are not offered. With practice, it is possible to discover how to estimate texture by simply sensation or manipulating a moist sample.As know-how continues to progress, soil testing techniques will evolve, furnis