可学习性：初次接触这个设计时，用户完成基本任务的难易程度。
Learnability: How easy is it for users to accomplish basic tasks the first time they encounter the design?
该问卷对系统的效率、影响力，友好度，可控性和可学习性给于总分和小分。
It gives an overall score and sub-scores on efficiency, affect, helpfulness, control and learnability.
神经元网络启发式的并行、分布特征和可学习性为专家系统的知识表达和获取、不确定性推理提供了新的途径。
The parallelism, distribution and capability of learning of neural net heuristics provide a new way for knowledge acquisition, knowledge representation and uncertainty reasoning in expert systems.
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