At the nebula's centre is a young binary star system that surely powers the nebula but does not, as yet, explain its colours.

星云的中心是一个年轻的双子星系，无疑提供了星云的动力，但，还没有影响它的颜色。

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Colouers: White base paint a can bu used as such or tinted to the colours of the Tikkurila tinting system.

颜色：白色A底漆可以直接使用，或用迪古里拉调色系统调色后使用。

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Associations with the Centre were additionally enhanced by the usage of the colours present in the institution's identification system.

此外，中心协会加强在该机构的识别系统，目前的颜色使用。

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Work also colours the green paper's principle that the welfare system should support families and children.

ECONOMIST: Welfare reform

In this model, colours stick out from the sphere according to how sensitive the visual system is to them.

ECONOMIST: Psychology