As a mobile multi-purpose platform, tablet computers also provide many possibilities for mobile teaching. The touch-based learning & entertainment teaching platform allows children to efficiently improve their academic performance in a relaxed and pleasant atmosphere. Such tablet computers generally integrate two learning sections of various courses and systematic learning functions. Generally, it includes multi-disciplinary high-quality teaching resources. The education tablet has the following main functions: it has the functions of touch screen input, text editing, picture editing, data storage, data management, wired and wireless Internet access that ordinary tablet computers have; Management functions, search methods support manual search, query by keyword, query by time; text and pictures can be scanned and converted into documents to save.
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A.0.2 For the calculation of road surface brightness, the luminosity data of the luminaire and the road surface brightness coefficient (q) or the simplified brightness coefficient (r) are required. The actual road surface q or r can only be obtained by measurement. Since China does not currently have its own road surface brightness coefficient, this standard recommends the simplified brightness coefficient table recommended by the International Commission on Illumination (CIE) and the International Standing Committee of the Road Congress (PIARC) (ie Tables A.0.2-1 and A). .0.2-2).