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钨制假金币 - 响声测试

Preview image for the video "钨制假金币 - 响声测试".

演示多种硬币鉴定方法,包括磁铁反应、重量检查、尺寸测量和响声测试,用于评估金属成分并检测假币。片段展示了强磁铁对不同金属的不同反应,并强调在检查可疑或高价值物品时,采用多种互补检测而不是单一方法来确认真伪和成分的重要性。

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