Product rejected again by the metal detector must be segregated. The metal detector operative must immediately inform QA of the segregated finished product.

对金属探测器有反应的成品应再次通过金属探测头，仍被排斥的产品必须分隔。

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Over 15 years, he returned 70 times with a metal detector built for gold prospecting.

FORBES: Hot Rocks

Are you the person who checks IDs, or the person who looks at the metal detector?

NPR: Airport Security Marked by Hassles

He came across the ring while out with his metal detector in February 2004.

BBC: Gold 16th century ring