| http://www.w3.org/ns/prov#value | - Some industries like rolling mills, paper machines, textile mills, machine tools, pumps, robots and domestic equipments like washing machine, fans etc. cannot imagined without speed regulation.Now any system employed for motion control is called drive and may employ any of the prime movers such as diesel or petrol engines, gas or steam turbines, steam engines, hydraulic motors and electric motors
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