在形而上领域有很多人有着丰富的灵性知识并有着分享它们的渴望。
There are many in metaphysics who carry a great deal of spiritual knowledge who develop the urge to share that knowledge.
不同于由一个专家小组开始，这个项目从这个领域收集了最好的可用性知识。
Rather than starting from a small group of experts, this project gathered the best usability knowledge from the field.
然而，由于电力系统领域知识往往具有经验性知识较多的特点，所以开发具有学习功能的专家系统有一定难度。
However, since the field knowledge of power system is characterized with a lot of experiential knowledge, it is a bit difficult to develop an expert system with study function.
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