这幅油画上覆盖了一层盐晶体和明胶，为此，研究人员专门赶赴意大利研究分解此类物质的细菌。
The paint was covered by salt crystals and gelatin glue. So the researchers headed to Italy to learn about a glue-munching bacteria.
这幅油画上覆盖了一层盐晶体和明胶，为此，研究人员专门赶赴意大利研究分解此类物质的细菌。
The paint was covered by salt crystals and gelatin glue. So the researchers headed to Italy to learn about a glue-munching bacteria.
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