为什么在电子信息时代信函仍保持它们的重要性？
Why have letters retained their importance in an age of electrical and electronic communications?
在当今的电子信息时代中，需要对大量的传统文档进行数字化处理。
In precent electronic information age, a mass of traditional files needed to be digital processed.
光电子信息材料是本世纪最受关注的材料之一，光电子集成器件在信息时代有极其重要的作用。
The material of optoelectronic information is one of the extremely greatest concerns of the material. Optoelectronic integrated devices take the most important effect.
光电子信息材料是本世纪最受关注的材料之一，光电子集成器件在信息时代有极其重要的作用。
The material of optoelectronic information is one of the extremely greatest concerns of the material. Optoelectronic integrated devices take the most important effect.
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