求翻译：数字电视（DTV）是继黑白电视和彩色电视之后的第三代产品，是集数字技术、微电子技术、网路技术、软件技术等高新技术综合应用的产物。随着数字电视技术的日趋成熟，互动电视已经成为数字电视的发展方向。互动电视打破了传统广播电视用户被动收看电视节目的时空限制，高清电视给予用户全新的视觉享受，互动增值服务为新兴业务的开发提供了无限可能。随着技术发展，电视机将成为家庭娱乐媒体的中心，广电互动平台将成为可通过多种网络传输、多种终端接入，功能强大、使用便捷的综合信息平台。互动电视提供的电视点播、交互式广告、在线支付、互动游戏、网页浏览等，必须采用数字电视中间件技术。中间件技术是软件技术中的关键技术之一，该技术可以使众多的软件提供商在不考虑硬件环境的情况下开发数字电视的互动应用，它是位于应用程序和操作系统之间的一种系统软件，通过定义一组支持数字电视应用功能的标准程序接口，使应用程序具有与底层硬件平台无关的特点。是什么意思？

Digital television (DTV) is the third generation after the black and white television and colour TV products, is a collection of digital technology, microelectronic technology, networking technology, software, technology, comprehensive application of high-tech products. With the maturing of digital TV technology, interactive TV has become the development trend of digital TV. Interactive TV has broken the traditional spatial and temporal limits of passive television broadcast TV, HD TV to give the user a completely new Visual, interactive development of value-added services for the emerging business provides infinite possibilities. As technology development, television will become a home entertainment media center, TV interactive platform will be available through multiple networks, multiple terminal access, powerful, easy to use comprehensive information platform. Interactive TV provides television on demand, interactive advertising, online payments, games, Web browsing, digital TV middleware technology must be used. Middleware technology is one of the key technology in software technology, the technology can make a large number of software providers in the case of hardware environment is not considered development of interactive digital TV applications, it is a system that is located between the application and operating system software, by defining a set of supported capabilities of standard digital TV application program interface, making the application has the characteristics of the underlying hardware platform-independent.