The inventor Henry Bessemer discovered that directing a blast of air at melted iron in a furnace would burn out the impurities that made the iron brittle.
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那些存活下来的人面临着更大的风险，如骨头变脆，威胁生命的感染，肾脏损害以及心脏问题。
Those who survive are at greater risk of developing brittle bones, life-threatening infections, kidney damage and heart problems.
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