单词open cluster
un.: 疏散星团
网络: 开放星团
疏散星团
The Pleiades nebulosity is caused by a chance encounter between an open cluster of stars and a molecular cloud.
昴星团是在一次偶然的机会下，由一个疏散星团与一个分子星云遭遇而形成的。
Hence, it is rare that an open cluster survives long enough for one of its members to form a planetary nebula.
因此，一个疏散星团很少能够存活到它内部的某个成员变成行星状星云。
Linux-HA comes with a set of resource agents based on the Open Cluster Framework (OCF), the standard for achieving high availability.
Linux-HA附带了一组基于开放集群框架（OpenClusterFramework，OCF）的资源代理，该框架是用于实现高可用性的标准。
The star is part of the open cluster of stars labelled NGC 2264 and known as the Snowflake cluster.
这颗恒星是在2264颗星标记星系星团的一部分，作为雪花称为集群。
It is called an open cluster because its stars are loosely bound and have started to spread out.
它被称为疏散星团，因为它的成员恒星结构松散而且还有恒星在扩散离开星团。
Through this window, a brightly-lit workshop appears where a whole open cluster of stars is being formed.
透过此窗口，一座灯火通明的工厂呈现眼前，一个疏散的恒星团正逐渐形成。
NGC 2818 is one of very few planetary nebulae in our galaxy located within an open cluster.
NGC2818是银河系中少数几个位于疏散星团内部的行星状星云之一。
Comparing with the open cluster, their stars are older.
和疏散星团相比，星一般较老。
This open cluster is particularly ancient, estimated to be nearly one billion years old.
这个疏散星团尤其古老，据测算有十亿岁了。
The Pleiades(Pleiads, the Seven Sisters), an open cluster of stars
昂星团（七姐妹星团，一个梳散星团）