In places, the ink from the original text is no more than a faint stain, so the scientists studying it need a technique that is sensitive to very low concentrations of ink.

在有些地方原文的墨迹只剩下些微印痕，这使得研究它的科学家需要用能识别超低浓度的墨迹的技术。

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Ink to print the biggest advantage is low cost.

墨轮的最大优点是打印费用低。

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Please add ink in time when there is blank area in print job for low ink .

墨盒里墨水量少时打印作业会有空白区出现，请及时添加墨水。

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But the main characteristic that limits each of those devices' ability to innovate is their reliance on Taiwan-based Prime View International, whose "E Ink" provides the low-power, easy-on-the-eyes reading experience.

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