When the pen is used, people can clearly see the residual ink in the pen from the transparent ink bag, which is convenient for people to supplement ink at the right time.

使用时，透明的墨水囊可以让人们随时清 楚地了解笔内剩余的墨水量，便于人们在合适的时间补充墨水；

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A pixel is built by sandwiching a layer of P-Ink, along with a small amount of electrolytic fluid, between two transparent electrodes.

如果将P - Ink的一个层面与小数量的电解流体相结合，那么两个透明的电极之间就形成一个像素。

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At the moment, such ink is composed of small, transparent spheres containing black and white particles suspended in a clear fluid.

目前的墨水是由悬浮在液体中的小的透明装有黑色和白色粒子的球体所构成。

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Coe had to draw dozens of chemical structures in indelible ink to make transparent slides.

FORBES: Magazine Article

For example, iron-gall ink, commonly used on ancient documents, is transparent to infra-red light and most visible in the ultraviolet region of the spectrum.

ECONOMIST: Monitor