Again, let the inks air dry for as long as it takes to make a permanent bond.
再次,让油墨干燥的空气,只要它采取做一个永久债券。
For example, it is possible for a paper to yellow before the inks begin to fade.
例如,可能在墨水褪色之前,纸张已经变黄了。
The inks of antiquity were made of soot: nearly pure carbon, the same stuff that the charred papyri now consist of.
这些文物的墨水是用烟灰做成——这一种近乎纯粹的碳,和纸莎草纸烧焦后的成分相同。
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