About Contour Survey in Dhaka

Release the clamp screw of your instrument, hold the instrument in the correct hand, and repair it about the tripod by rotating only the decrease aspect Along with the still left hand. Tighten the screws with the instrument firmly.???? ???? ????????? ?????? ??????? ?????? ??? ????????? ?????? ???? ???????????? ?????? ???????? ?????? ??? ?????It dem

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