A positive charge applied on the top surface of the ink will allow the white to show, making the surface as white as a sheet of paper.

加上墨水表面上方的正电荷将使白色显现出来，使表面像一张纸那样白。

youdao

Instead, Dr Mocella employs phase-contrast imaging, a technique which works because the ink in the scrolls has not been absorbed into the papyrus, but instead sits on top of it.

相反地，莫塞拉博士采用的是反差衬托图像，它之所能有效是因为卷轴里的墨水没有被纸莎草纸吸收，而是在纸面之上。

youdao

It contains metallic salts and is formulated to dry ink without hindering the trapping properties of the next ink film or to top of it.

它含有金属盐，其配方可使油墨干燥而不妨碍加印于它上面的油墨的牵引特性。

youdao

Like all sho, it is black ink on white paper, and written from top to bottom, right to left, as is traditional Japanese (one of the many differences with Western languages that no doubt confounded Francis Xavier).

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He was caught with notebooks containing the names of top al Qaeda figures written in invisible ink, Manchester Crown Court heard during the trial.

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The advisory that I spoke about at the top of this briefing is -- the ink is still not dry on it.

WHITEHOUSE: Press Briefing