It has the properties of complexity, concealment, stagnancy and controllability. The evaluation of curriculum cost based on the curriculum development should adopt the dual method.
课程代价具有复杂性、隐蔽性、滞后性和可控性，课程代价是以课程进步为前提的代价，评估课程代价应采用要素投入的二重性方法。
The authors proposed a method for reliability evaluation and re-evaluation of distribution network by dual isomorphic Bayesian network model.
作者提出了一种双同构贝叶斯网络模型的可靠性评价和重新评价的配电网络。
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