Hydrography meaning in Urdu & English

(1) - Hydrography (n.) That branch of surveying which embraces the determination of the contour of the bottom of a harbor or other sheet of water, the depth of soundings, the position of channels and shoals, with the construction of charts exhibiting these particulars.
(2) - Hydrography (n.) The art of measuring and describing the sea, lakes, rivers, and other waters, with their phenomena.

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