本文论述了电磁衬板的设计及开发应用效果。
The paper expatiate the design and application effects of electromagnetic liner.
在产品的包装与设计及开发中，溶合了浪漫的爱情文化元素。
In the packaging and product design and development, Rong he has romantic love and cultural elements.
介绍如何用多媒体工具设计及开发高等数学交互式助学课件。
In this paper, we discuss how to design and develop the interactive courseware for helping to learn higher mathematics by using multimedia tools.
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