Researched the fundamental distribution of microorganism of book collection of library. The result show that the most micropopulation was mould and the next were bacteria.

研究了微生物在图书馆藏书中的基本分布，结果表明：污染图书资料的主要优势菌为霉菌，其次为细菌。

youdao

That means the manuscript can be studied layer by layer, enabling the researchers to isolate the remains of the mathematical text from the prayers, the mould that has accumulated over the centuries and some mysterious paintings that were added the last time the book disappeared, after the first world war.

ECONOMIST: The Archimedes palimpsest