本文在介绍固体电蓄热装置的原理基础上，分析固体电蓄热装置的经济性和应用前景。
This paper introduces the principle of solid electric heat storage equipment, and accordingly analyzes its economics and application prospect.
本文概述了彩色不锈钢的应用前景和不锈钢着色原理，着色工艺方法及色膜的性能。
The application prospect of colored stainless steel, principle and the method of its surface—coloring are discussed.
重点介绍了系统的成像原理和种类，国外的研究进展以及系统实现的关键技术和应用前景。
The emphasis is on the theory and the type of Sparse Aperture Imaging System, study development in foreign country, key technology and the application in the future.
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