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isahttp://webisa.webdatacommons.org/
n5ck12.
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
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isa:142061258
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Lubricants such as oil or grease may be used to coat the moving parts of a machine so they slide over each other more easily.
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n5:org
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