Gross problems or blunders: Mistakes created by the surveyor during the survey. Upsetting the instrument, misaiming a goal, or composing down a wrong measurement are all gross glitches. বাংলাদেশের উপজেলা সমূহের ডিজিটাল মানচিত্র (টপোগ্রাফিক) প্রণয়ন Every survey assistant brings more than five several years of pertinent practical experience. We now https://caroleo429fmu5.wikicorrespondence.com/user