As new applications arise and computer technology improves, it may get harder and harder to distinguish between the real and the virtual. Don't get confused, though.
随着新型应用技术和电脑技术的进步，也许现实和虚拟会越来越难以区分，但是不要感到困惑。
Virtual instruments is a combination product of the digital signal processing and computer technology, generally composed of hardware platforms and software applications.
虚拟仪器是数字信号处理与计算机技术相结合的产物，一般由硬件平台和应用软件两大部分构成。
By the late 20th century the telegraph had been replaced in most applications in developed countries by digital data transmission systems Based on computer technology.
20世纪晚期，在发达国家中，电报的大部分应用已被用计算机技术的数字数据传输系统取代。
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