h-r diagram meaning in Chinese

赫罗图

In the h - r diagram below , our sun is now in the main sequence
在以下的赫罗图中，太阳正位于主序上。
From the two h - r diagrams below , we can also tell which cluster is older and which is younger
由以下两幅赫罗图中，我们可断言右图表示的星团比较年老。
Before the interstellar cloud contracts , it was very cold and dim . thus , the cloud is represented by a point at the right in the h - r diagram
在星际云收缩之前，它非常冰冷，所以在这个阶段，星际云会位于赫罗图上一个极右的位置。
Upon contraction under its own gravity , the interstellar cloud heats up , and thus moving to the left in the diagram . note that the position of a star in the h - r diagram shows its physical properties , not its position in the sky
当星际云收缩，它会变得越来越热，而它在赫罗图上的位置亦会向左移动注意：恒星在赫罗图上的位置显示了它们的物理特性，而非其在天空的位置。
We expect stars with short life span are already dead . when we plot the stars of a cluster in the h - r diagram , we see the more massive stars , which are stars in the upper left , have already evolved off the main sequence
换句话说，星团内寿命短的星应该已经死去，当我们把星团内的星以赫罗图的形式绘画出来时，我们发觉位于图中左上角的大质量恒星果然已经步入死亡阶段，离开了主序星的行列。