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Technology is often a consequence of science and engineering — although technology as a human activity precedes the two fields. For example, science might study the flow of electrons in electrical conductors, by using already-existing tools and knowledge. This new-found knowledge may then be used by engineers to create new tools and machines, such as semiconductors, computers, and other forms of advanced technology. In this sense, scientists and engineers may both be considered technologists; the three fields are often considered as one for the purposes of research and reference.[14]. | Practical Machinery Management for Process Plants Volume 3 Machinery Component Maintenance and Repair Turbomachinery Overhauls Foundations and Grouting Alignment and Balancing Pump Shaft Repairs Mechanical Seals Machinery Components Heinz p. Bloch Fred K. .
