Some glass-hard steel is homemade.
一些有最高硬度的钢是自制的。
Some glass-hard steel is home made.
一些有最高硬度的钢是自制的。
With the help of the science and technology, glass can be made as hard as steel, or as soft as silk, or as light as paper, or as heavy as iron.
借助于科学技术，玻璃可以被制作的像钢一样硬，像丝一样柔，像纸一样轻，像铁一样重。
With the help of the science and technology, glass can be made as hard as steel, or as soft as silk, or as light as paper, or as heavy as iron.
借助于科学技术，玻璃可以被制作的像钢一样硬，像丝一样柔，像纸一样轻，像铁一样重。
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