后来柏塞麦炼钢法的改进使极高的高层建筑的建造成为可能。
The refinement of the Bessemer process for making steel (lighter and stronger than iron) made extremely tall buildings possible.
柏塞麦炼钢法：1856年由英国的柏塞麦发明的将生铁转变成钢的技术，1860年把该技术投入商业生产。
Bessemer process: technique for converting pig iron to steel invented by Henry Bessemer in England in1856and brought by him into commercial production in1860.
柏塞麦炼钢法：1856年由英国的柏塞麦发明的将生铁转变成钢的技术，1860年把该技术投入商业生产。
Bessemer process: technique for converting pig iron to steel invented by Henry Bessemer in England in1856and brought by him into commercial production in1860.
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