这种实践并没有增加Eclipse中的项目结构的复杂性，相反，它的好处是可以更轻松地交换出实现捆绑包。
This practice does make the project structure in Eclipse a bit more complex, but the benefit is that you can swap out the implementation bundles much more easily.
在隐藏执行复杂性时，Spring 的抽象层也变得可以交换。
Spring's abstraction layers also makes many technologies virtually swappable while hiding the implementation complexities.
同时，逻辑机制的极端复杂性与局限性，所形成的在线分析技术也是无法满足高速信息交换的需求。
Meanwhile, the formed on-line analytical technology could not fulfill the need of high speed information exchange due to the extreme complexity and limitation of the logical system.
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