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通过对数字电视原理、分类、用途、特点的简要说明,澄清对收费电视认识上的误区,并介绍了数字电视在我国的发展现状及其前景。
Through the brief description of the principles, classification, usage and characteristics of digital television, the author clarifies the misunderstanding of pay TV and introduces the status quo and prospects of digital television in our country.