SEN has various meanings in the Governmental & Military category. Discover the full forms, definitions, and usage contexts of SEN in Governmental & Military.
An equipment which detects, and may indicate, and/or record objects and activities by means of energy or particles emitted, reflected, or modified by objects. Note. The energy may be nuclear, electromagnetic, including the visible and invisible portions of the spectrum, chemical, biological, thermal or mechanical, including sound, blast and earth vibration.
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