How do I get a benchmark on the ground when using a dumpy level?
Md Ariful Islam
বিএসসি(সিএসই)
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এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
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পিজিটি(মেডিসিন)
Benchmark information is usually written on the monuments supplied by the area you are surveying in.
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