5 Simple Techniques For Contour Survey in Dhaka

Launch the clamp screw on the instrument, keep the instrument in the right hand, and take care of it over the tripod by rotating only the reduce section with the left hand. Tighten the screws with the instrument firmly.An isohyet or isohyetal line (from Historical Greek ????? (huetos) 'rain') is actually a line on a map becoming a member of detail

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