Levelling (or leveling in American spelling) is a branch of surveying, the object of which is to Levelling is the measurement of geodetic height using an optical levelling instrument and a level staff or rod having a numbered scale. Common levelling instruments include the spirit level, the dumpy level, the digital level, and the laser level. ==Sp...
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• of Level
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The procedure to set the balance so the platform is horizontal. This gives the balance a position that is repeatable so the results will be the same if the balance is moved. This is done using levelling feet.
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Levelling is the art or operation of ascertaining the different elevations of objects on the surface of the earth, or of finding how much any assigned point included in a survey is higher or lower than another assigned point. It is a branch of surveying of great importance in making roads, determining the proper lines for railways, conducting water...
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The disappearance of contrasts — usually phonological or morphological — in the course of a language's development.
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