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A weighing scale (usually just "scale" in common usage; except in Australian Englre "scales" is more common) is a measuring instrument for measuring the weight or mass of an object. They use one of two techniques. A spring scale measures weight by the distance a spring deflects under its load. A balancecompares the unknown weight to a standard weight using a horizontal lever. Weighing scales are used in many industrial and commercial applications, and products from feathers to loaded tractor-trailers are sold by weight.

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16y ago

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