Learning evaluation is an effective method of guaranteeing online-learning quality and it plays key role in the network-education evaluation system.
学习评价是确保网络学习质量的有效方法，它在整个网络教育评价体系中居于核心地位。
The testing results show that the system can effectively reduce the data quantity of the image recording on the basis of guaranteeing image quality.
测试结果表明，应用这一方法可在保证图像质量的前提下有效地降低图像记录数据量。
Performance property plays a vital role in guaranteeing the quality of data warehouse information model and system design.
性能属性在保证数据仓库模型建设和数据仓库系统建设的质量中扮演关键角色。
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