主星 meaning in English
[天文学] primary component
Examples
- In comparison to their size on the main sequence, the stars now become giants .
同它在主星序上的大小相比，恒星现在就成了巨星。 - As a companion star orbits its primary, it alternately approaches and recedes from the earth .
当伴星围绕着主星运转时，它交替地朝着地球或背离地球运转。 - As these luminous and massive stars exhaust their hydrogen fuel, they begin to depart from the upper end of the main sequence .
当这些亮而且质量大的恒星耗尽了氢燃料时，它们就开始从主星序上端脱离。 - When a massive proto-star approaches the main sequence, its surface temperature is low and it can not ionize the ambient gas .
当一个大质量原星接近主星序时，它的表面温度是低的，因而不能电离周围的气体。 - These investigators tenaciously argued the evolution of stars downward along the sequence ought to be accompanied by a continuous and very substantial loss of mass .
这些研究者就顽固地争辩说，恒星沿主星序向下的演化，应该伴随着连续的和很显著的质量损失。