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нуклеарни реактор
An apparatus in which a nuclear fission chain reaction can be initiated, controlled, and sustained at a specific rate. A reactor includes fuel (fissionable material), moderating material to control the rate of fission, a heavy-walled pressure vessel to house reactor components, shielding to protect personnel, a system to conduct heat away from the reactor, and instrumentation for monitoring and controlling the reactor's systems.
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električna opasnost
A dangerous condition such that contact or equipment failure can result in electric shock, arc flash burn, thermal burn, or blast.