When these charged droplets come into contact with the surface of the print they collect any substances deposited on it, creating a thin liquid film.

这些充了电的液滴与指纹表面接触后会吸走其表现上存积的任何物质，产生一块液体薄膜。

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Visible: Left by the transfer of blood, paint or another fluid or powder onto a surface that is smooth enough to hold the print; evident to the naked eye.

可见的：残留在血迹上、涂料上或者表面灰尘上。

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Latent: Left by the transfer of sweat and natural oils from the fingers onto a surface that is smooth enough to hold the print; not visible to the naked eye.

潜在的：手指表面的汗和油脂在一个平滑表面上留下的指纹，肉眼不可见。

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When these charged droplets come into contact with the surface of the print they collect any substances deposited on it, creating a thin liquid film.

ECONOMIST: Forensic technology

"The pencil skirt has the perfect shape to highlight a print because it's a really clean surface, " said designer Joseph Altuzarra of the high-waisted, nipped-in style to which he returns season after season.

WSJ: Rethink: Pencil Skirts | Off Duty Spring 50

And because the company uses capsules rather than beads, it can mix them with a binding agent and print its electronic ink on to almost any surface, just as though it were real ink.

ECONOMIST: Showing off