The present invention discloses method of reducing phthalic anhydride colour number by using active carbon.

本发明公开了一种用活性炭降低苯酐色号的方法。

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Not confined to clothing, silk was also used for a number of other applications, including writing, and the colour of silk worn was an important indicator of social class during the Tang Dynasty.

丝绸不仅用于衣物，而且还有许多其它用处，包括书写，以及人们穿戴丝绸的颜色在唐朝是社会阶级的重要标志。

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For instance, the first presentation might be of four CARDS, each with a number on one side and a colour on the other.

例如，第一轮游戏是给出4张卡片，每张卡片上一面写着数字另一面是一种颜色。

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With over 600 pages of good-quality paper, his is a massive three-decked battleship of a book, in general handsomely produced, but let down by some poorly designed colour plates, including a number of reversed images.

ECONOMIST: British naval history

Cotswold District Council said it had received a small number of objections about the colour and size, raised by some residents whose homes were near or overlooked the play area, but said the scheme was the developer's responsibility.

BBC: The playground when it was fenced off

For instance, the first presentation might be of four cards, each with a number on one side and a colour on the other.

ECONOMIST: Psychopathy