#37,209
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detector; locator
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#58,937
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metal detector
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EN A metal detector is an electronic instrument which detects the presence of metal nearby.
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#115,256
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fishfinder
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#125,616
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radar
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#234,239
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direction finder
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EN A magnetic anomaly detector (MAD) is an instrument used to detect minute variations in the Earth's magnetic field.
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EN Explosives trace detectors (ETD) are explosive detection equipment able to detect explosives of small magnitude.
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automatic direction finder; ADF
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sonar
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EN High-frequency direction finding, usually known by its abbreviation HF/DF or nickname huff-duff, is the common name for a type of radio direction finder (RDF...
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