To find out, scientists artificially aged modern paper to reveal the changes on the molecular level.
为了寻找答案，科学家人为地将现代的白纸老化以揭示其分子水平出现的变化。
The basic properties and characteristics of modern paper industry are analyzed on the basis of the capital, technology and enterprise scale efficiency etc.
本文从资金、技术、企业规模效益等方面分析了现代造纸工业的基本属性和特点。
The basic properties and characteristics of modern paper industry are analyzed on the basis of the capital, technology and enterprise scale efficiency etc.
本文从资金、技术、企业规模效益等方面分析了现代造纸工业的基本属性和特点。
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