如果数字计算机两次失败，飞行控制系统切换到模拟模式。
If two of the digital computers failed, the flight control system switched to the analog mode.
压缩包的代码包含各种规则模拟和计算数字通信系统各个方面！
The Code includes Various routines that simulate or compute aspects of digital communication systems.
与模拟系统相比，计算机数字视频系统在图像质量、结构和新产品开发周期等方面有许多优势。
Compared with analog systems, digital video systems of computer have many advantages in the quality of picture, structure and the period of new production.
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