| http://www.w3.org/ns/prov#value | - Marine Machinery Mechanic (Shop 38M): A marine machinery mechanic installs, removes, optically aligns, tests, overhauls and repairs ship's main propulsion machinery including turbine generators, internal combustion engines, reduction gears, propeller shafts, pumps, valves, auxiliary engines, nuclear reactor components, ordnance machinery and other shipboard components.
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