朱兰螺旋图也称为朱兰质量螺旋，是美国质量管理专家朱兰率先采用表达产品质量产生、形成、发展的客观规律的一条螺旋上升曲线，该曲线对品质管理有重要的指导作用。
银河系可说是我们周遭大质量螺旋星系的典型，根据观测到的大质量恒星数目判断，银河系的恒星形成率为每年数个太阳质量。
In our own Milky Way, which is quite typical of nearby, massive spiral galaxies, the number of observed high-mass stars indicates that stars are forming at a rate of a few solar masses a year.
平面内绕行，这个质量不是，呈放射状减小，而是，呈螺旋形减小，我们称之为中子星，周围的吸积盘，这个叫做吸收星。
They go around in the plane of the blackboard, say, and so this matter cannot fall radially in but it will fall in and spiral in and forms what we call an accretion disk around the neutron star.
在中断了通常的搜索远距离宇宙爆炸任务后，NASA的Swift人造卫星获得了邻近螺旋星系的紫外线高质量图像。
In a break from its usual task ofsearching for distant cosmic explosions, NASA's Swift satelliteacquired the highest-resolution view of a neighboring spiral galaxyever attained in the ultraviolet.
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