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(1) Application Form for the Establishment of Fire Protection Technical Service Branches;山野烂漫，梨花盛开，爱人携手，共赏繁华……7. Real-time collaboration with team members from all over the country章邯点头道：狠狠的打，让赵人着急即可，至于破城不着急。Iterative sub-patterns: Iterative sub-patterns can sequentially access elements in an aggregation without exposing the internal appearance of the aggregation. The aggregation of multiple objects is called aggregation. Aggregation objects are container objects that can contain a group of objects. Iterative subpatterns encapsulate iterative logic into a separate subobject, thus separating it from the aggregation itself. Iterative subpatterns simplify the aggregated interface. Each aggregated object can have one or more iterative subobjects, and the iterative states of each iterative subobject can be independent of each other. Iterative algorithms can be independent of aggregation role changes.