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A phono-semantic compound, 镪 combines the metal radical 钅 (釒 in traditional 鏹) to indicate its connection to metals, silver, and forged items, with the phonetic component 强 (qiáng) for pronunciation. Classically, it referred to strung coins, silver bullion, and other valuable currency. In modern usage, it appears primarily in the chemical term 镪水 (qiǎngshuǐ), denoting strong corrosive acids like nitric or sulfuric acid, a shift from physical wealth to industrial chemicals.
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