Several large software modules from previous projects were introduced into the system during development, and a common approach to cross cutting concerns was required for both existing and new code.

在开发期间，有几个来自先前项目的大型软件模块被引入系统中，对于现有代码和新代码而言，一种用来横切关注点的通用方法是必不可少的。

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Having established the system core, extensibility mechanisms, and acceptable performance, the final step was to apply cross-cutting concerns to the system.

在建立了系统核心、可扩展机制和可接受的性能之后，最后一个步骤就是将横切关注点应用到系统。

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It provides a way of specifying and encapsulating cross-cutting concerns in a system.

它为在系统中详细指定并封装横切点提供了方法。

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The report covers all DIVERSITAS activities including its work on the interface between science and policy making, developing cross-cutting networks, the Earth System Science Partnership, etc.

UNESCO: Social and Human Sciences