渗碳钢,硬质钢;
It was also shown that the rusted main bars were converted from the soft steel into hard steel with an increase in the fatigue stress amplitude under the same fatigue cycle loads.
同时,在相同疲劳循环次数下,随疲劳应力幅的增大,钢筋锈蚀的性能逐渐由软钢向硬钢转变。
Bessemer converter: a large pear-shaped container in which molten iron is converted to steel by the Bessemer process.
贝塞麦转炉:一种大型、梨状的容器,在其中熔化的铁通过贝塞麦炼钢法制成钢。
Thus far, numerous sea creatures have successfully converted the carbon steel subway cars into their new homes.
到现在已经有无数海洋生物成功把钢铁的车厢变为它们的家。
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