Experimental data showed that the aqueous silica sol had excellent fixing and darkening effects on Direct Black GF on cotton.

实验结果显示，硅的水溶胶对直接黑gf有着明显的固色作用和增深作用。

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The display looks great both indoors and out, though we did notice some odd black spotting while viewing the panel in direct sunlight -- adjusting the angle eradicates the issue.

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As a direct consequence, the price for a barrel of the black goo has reached a level last seen before the panic spike in 2008.

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Larger rival Direct Line has told the BBC it is also piloting its own "black box" scheme.

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