文章讨论了复合图书馆的本质，指出当前全面开发复合图书馆是不可能的。
The article discusses the essence of hybrid library, and points out that it's impossible to develop all-round hybrid library recently.
尽管这代表石油开发已循序渐进地展开，但石油的全面开发仍存在巨大障碍。
While this represents incremental progress, obstacles to full-scale oil sector development remain great.
事实证明不用全面开发新的系统，而是将遗产系统集成到新的软件环境之中，是一种不错的选择。
It is a good choice that instead of developing a new system comprehensively, integrating the legacy system to a new software environment.
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