星体在由颜色编码的红外图象上显示为白色，而黑洞周围的地方程现蓝色。
The stars show up white and the space around the black hole is blue in this color-coded infrared image.
配电子系统的建模关键是忽略其内部的暂态过程并作出了网络的等值电路图，因而依此建立的节点电压方程为代数方程。
The key to power distribution system is to ignore transient process in this sub-system and to draw the network equivalent circuit diagram, therefore its node voltage equation is algebraic equation.
我们将从系统的方程出发，来构成一个代表系统的图。
We shall start with the equations of the system and construct a graph representing the system.
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