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- A large mountain mass or compact group of connected mountains forming an independent portion of a range. 山丘组成山脉的一部分独立的大的山体或连接起来的山体密集群
- Perfect hexagon is the most compact grouping of wires. 精确的六角形是最密实的钢丝束。
- A new look at Stephan's Quintet, a compact group of galaxies discovered about 130 years ago and located 280million light years from Earth. 四星系碰撞，约130年前，发现距离地球2.;8亿光年的星系紧凑组发现新的面貌。
- Where H is a subgroup of a topological group G. The Second is that we have proved that the annibilator A of H is an open subgroup of the dual group G when G is a locally compact abelian group and H is its compact group. 其次证明了当G是一个局部紧交换群且H是它的紧子群时,H的零化子A是对偶群G的开子群。
- A small spiral galaxyis caught between two elliptical galaxies, in a cluster called the Hickson Compact Group 90. The ellipticals are stretching and will eventually swallow the smaller galaxy. 在编号希克森群90的星系组合中，一个相对较小的涡旋星系被2个椭圆星系俘获、拉伸，最终将并入右下方的那个椭圆星系中。
- Of course, Hickson Compact Groups also make for rewarding viewing for Earth-bound astronomers with more modest sized telescopes. 当然，希克森致密星系团还有助于地面上的天文学家利用更多的中型望远镜进行观测。
- Regular representation of compact group 紧群的正则表示
- Invariant integral on compact group 紧群上的不变积分
- Unitary representation of locally compact group 局部紧群的酉表示
- The weakly inner amenable groups or (IA) groups form a very important class of locally compact groups which contains amenable groups (including abelian groups and compact groups). 弱内自可靠群或[IA]群是一类重要的局部紧致拓扑群，是包含可靠群（当然也包含交换群，紧致群）在内的一大类拓外群。
- decentralised compact group city 分散式紧凑型的组团城市
- Education should not be restricted to any one specific age group. 教育不应限制在任何特定的年龄组上。
- By using the method of Markov-Kakutani fixed point theorem, it is proved that Z(superscript d) action on compact groups by rotation is topologically transitive if and only if it is ergodic. 利用Markov-Kakutani不动点定理证明了紧群上的Z(上标 d)左平移作用是拓扑可迁的当且仅当是遍历的。
- He broke away from that lawless group years ago. 他在几年前脱离了那个非法团体。
- Ok. Luxury, mid-size or compact? 好。是要豪华型、中型还是小型车？
- The group of barbaric soldiers killed many people. 那群野蛮的士兵杀了很多人。
- The group was made up of doctors. 这个团体是由医生组成的。
- You can get the feel of a compact car in no time. 你很快就能把小型车摸清楚。
- I appreciate his compact style of writing. 我欣赏他那简洁的文体。
- A group of boys dashed out of the classroom. 一群男孩子从教室里冲出来。
