这个模式将应用软件组织到小组中去，这时每个小组代表一个抽象的特殊层面。
This pattern structures applications into groups, where each group represents a particular level of abstraction.
实际上，每个状态都可以设置代表这个小组中一个成员单一的工作单元。
In effect, each state could be set to represent a single unit of work by an individual on the team.
研究小组通过观测每个星系中一个代表性恒星的旋转速度，来估算星系的质量。
The team estimated the mass by observing the speed of a representative sample of stars in each galaxy.
研究小组通过观测每个星系中一个代表性恒星的旋转速度，来估算星系的质量。
The team estimated the mass by observing the speed of a representative sample of stars in each galaxy.
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