Some glass-hard steel is homemade.

一些有最高硬度的钢是自制的。

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Some glass-hard steel is home made.

一些有最高硬度的钢是自制的。

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The study is concerned with perforation of thick woven composite plates by hard steel cylinder.

本文对厚编织复合材料板由硬的钢圆柱弹丸穿孔问题进行了研究。

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He dug deep into the darkness, hitting the steel so hard that his body began to fail him.

VOA: special.2009.02.21

The strings on his boots were as hard as steel.

VOA: special.2010.05.01

It would take cold, hard steel, made from hot molten iron.

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It feeds through a stylus that is "as hard as steel, " says Mark Seetin of the U.S. Apple Association.

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And one day, a small group of churches on the South Side of Chicago answered, offering me work with people in neighborhoods hit hard by steel mills that were shutting down and communities where jobs were dying away.

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