metal detector

• 一种电子设备，用于探测金属物体的存在，常用于安检或寻宝。

An electronic device that detects the presence of metal objects, typically used for security screening or treasure hunting.

1. Security deviceB1formal

   An electronic device that detects the presence of metal objects, typically used for security screening.

   金属探测器

   • Passengers must walk through a metal detector at the airport.
   • The security guard used a handheld metal detector to check bags.
   • The metal detector beeped when he walked through with his keys.

2. Hobbyist toolB1informal

   A portable device used by hobbyists to find buried metal objects like coins, jewelry, or relics.

   业余爱好工具

   • He took his metal detector to the beach to look for lost coins.
   • She found an old silver ring with her metal detector.
   • Metal detector enthusiasts often search old battlefields for artifacts.