大家都搜：
群集外壳
1、cluster size───簇大小
2、polybasic cluster───多元簇
3、globular cluster───[天]球状星团
4、stilbite cluster───细晶簇
5、cluster───n.群；簇；丛；串；n.(Cluster)人名；(英)克拉斯特；vt.使聚集；聚集在某人的周围；vi.群聚；丛生
6、star cluster───n.星团；[天]星团
7、shell startup───shell启动
8、cluster sampling───分群[组]抽象法；分组取样；类集抽样；巢式抽样法
9、shell───vt.剥皮；炮轰；n.壳，贝壳；炮弹；外形；vi.剥落；设定命令行解释器的位置
1、Infrared images from the Spitzer Space Telescope (yellow, red, and green) expose a surrounding shell of dust and gas that's being lit up as the material streams through a nearby star cluster.───由斯皮策太空望远镜拍摄到的红外照片(黄色、红色、绿色部分)正好是这颗气体恒星穿过附近的星团时，所显露出的尘埃及被点燃气团的外部结构。
2、inner core being made of magnetic ferrite nano particle cluster, shell coating layer being made of mesoporous silicon dioxide;───内核是磁性铁氧体纳米粒子团簇，外壳包覆层是介孔二氧化硅；
3、paper, based on shell theory, studies the surface cementing operation scheme without drilling rig during cluster drilling in SZ 36 -1 J Area in Bohai Sea.───本文应用板壳理论，对渤海绥中36—1 J 区丛式井表层无钻井时间固作业方案进行了研究。