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He heated liquid mercury in air, and it turned into a red powder, known as the red calx of mercury.
他将液汞在空气中加热，然后它变成了一种红色粉末，即通常所说的红色水银烧渣。
youdao
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He heated liquid mercury in air, and it turned into a red powder, known as the red calx of mercury.
他将液汞在空气中加热，然后它变成了一种红色粉末，即通常所说的红色水银烧渣。
youdao