Chinese made first use of diamond
Chinese made first use of diamond
Stone age craftsmen in China were polishing jade objects using diamond 2,000 years before anyone else had the same idea, new evidence suggests.
bbc
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Chinese made first use of diamond
Chinese made first use of diamond
Stone age craftsmen in China were polishing jade objects using diamond 2,000 years before anyone else had the same idea, new evidence suggests.
bbc
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雲淡風輕．若即若離
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