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What Does Hydrographic Survey in Dhaka Mean?

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When the wire (set at a certain depth by a method of weights and buoys) encountered an obstruction, it would become taut and form a "V," revealing the depth and position of submerged rocks and other obstructions. Most of the prior facts within the job region spans in the 1880s https://hydrographicsurveyinbangl35778.ssnblog.com/31668135/5-essential-elements-for-hydrographic-survey-in-bangladesh

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