单词	ironsand
释义	ironsand /ˈʌɪənsand / noun [mass noun] NZ Dark sand rich in iron ore, found on some western beaches on New Zealand’s North and South Islands: they applied to search for ironsand along the coast... The company uses locally sourced ironsand to produce around 650,000 tons of steel a year. Nationwide, they have been other, more successful attempts, to harness the hidden treasures found in ironsand. In 1914, a young mining engineer experimented with an idea to process coal and ironsand to produce iron. Origin Late 18th century: from iron + sand.
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