metal detector

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A man in the U.K. found buried gold worth millions with a metal detector.
一名英国男子用金属探测器发现了埋在地下价值数百万的金子。
When you go through a metal detector at the airport with a conductor such as keys in your pocket, the alarm goes off.
当你带着一个导体（比如口袋的钥匙）走过机场的金属探测器时，机器会发出警报声。
Shards of titanium from the wrecked A-12 scatter the crash site as aerospace historian Peter Merlin recently searches the debris field with a metal detector.
来自A-12残骸的钛碎片散落在坠毁现场，航空航天历史学家彼得·梅林最近用金属探测器搜寻了碎片散落区域。

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
Getting through the metal detector stealthily is one easy way to avoid secondary screening.
FORBES: Magazine Article

a machine that you move over the ground or a surface to discover if there is metal there

a device that gives an audible or visual signal when its search head comes close to a metallic object embedded in food, buried in the ground, etc

金属探测器
Finally, this paper prospects the trends of metal detectors and the application of new technology in metal detector.
最后,展望了金属探测器未来的发展趋势,以及新技术在探测器中的应用。
金属检测

金属探测器
Metal detector now comes into many aspects of our social life.
金属探测器在现代社会生活中的应用越来越广泛。
电子、通信与自动控制技术
金属探测器
金属探量观测器
金属侦检器