它们并没有被数字化，因此这些资料将永远丢失。
They were not digitized so the information was lost forever.
数字图书馆是利用现代计算机技术将图书馆资料信息数字化。
Digital libraries use current modern technology to digitize the information material.
数字图书馆是利用现代计算机技术将图书馆资料信息数字化。
Digital libraries use current modern technology to digitize the information material.
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