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.

发明家亨利·贝塞默发现，在熔炉里对铁水直接吹一吹气，就会烧掉使铁变脆的杂质。

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The 300 holes in each blade, most of them thinner than a human hair, are engineered to spread a coat of cool air over the spinning blades so they aren't melted by 3,000f exhaust gases.

每一个涡轮机叶上有300个小孔，这些小孔大多数比人的头发丝还要细，它们会被一层冷却空气所覆盖，以免被3000f的高温所融化。

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Japanese experts say the fuel rods inside the reactor were fully exposed to the air and melted.

日本专家说，反应堆内的燃料棒完全与空气接触并融毁。

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